Lowell Observatory
Observatory · Flagstaff ·

Lowell Observatory

Observatory · Flagstaff ·

Historic observatory where Pluto was discovered, offering stargazing

stargazing
telescopes
interactive exhibits
knowledgeable staff
pluto discovery
educational
planetarium show
dark sky
Lowell Observatory by null
Lowell Observatory by Jlahorn/CC by-SA 3.0 (Wikimedia)
Lowell Observatory by Nancy-pics/CC by-SA 3.0
Lowell Observatory by Nagualdesign/Public Domain (Wikimedia)
Lowell Observatory by InSapphoWeTrust/CC BY-SA 2.0
Lowell Observatory by J.E. Purdy/Library of Congress, Prints and Photographs/Public Domain
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null
Lowell Observatory by null

Information

1400 W Mars Hill Rd, Flagstaff, AZ 86001 Get directions

Gender neutral restroom
Free Wi-Fi
LGBTQ friendly
Trans safe
Wheelchair accessible entrance

Information

Static Map

1400 W Mars Hill Rd, Flagstaff, AZ 86001 Get directions

+1 928 774 3358
lowell.edu
@lowellobservatory

Features

•Gender neutral restroom
•Free Wi-Fi
•LGBTQ friendly
•Trans safe
•Wheelchair accessible entrance
•Wheelchair accessible parking lot
•Wheelchair accessible restroom
•Wheelchair accessible seating

Last updated

Jan 30, 2026

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@travelleisure
28,641 Postcards · 5,542 Cities

The Perfect Girls Trip for Every Season: Winter, Spring, Summer, and Fall

"An observatory with historical significance where Pluto was discovered, offering public astronomy programming and telescope access during events like the Flagstaff Star Party." - Carole Rosenblat

https://www.travelandleisure.com/girls-trips-winter-spring-summer-fall-8743711
Lowell Observatory
@travelleisure
28,641 Postcards · 5,542 Cities

See the Year’s Brightest Comet, a Supermoon, and 2 Meteor Showers in October's Night Sky

"Because the newly captured temporary mini moon is only about 37 feet wide — too small for amateur telescopes or binoculars — the article recommends visiting an observatory with high-powered telescopes, such as the Lowell Observatory in Flagstaff, Arizona, which it describes as one of the best places in the country to spy on space." - Stephanie Vermillion Stephanie Vermillion Stephanie Vermillion is a travel journalist and photographer covering culture and adventure for Travel + Leisure Outside, and more. Travel + Leisure Editorial Guidelines

https://www.travelandleisure.com/october-2024-space-guide-supermoon-comet-orionid-draconid-8721032
Lowell Observatory
@atlasobscura
4,908 Postcards · 2,018 Cities

20 Out-of-This-World Stargazing Spots

"Percival Lowell, of the well-known Lowell family in Boston, was an early 20th century astronomer who popularized the belief that Mars was home to an advanced, highly technological civilization. Like most wealthy amateur scientists of his era, Lowell had many interests; he was a businessman, author, mathematician, and noted Japanophile who traveled extensively in Asia. In 1894, however, Lowell dedicated most of his efforts to studying astronomy and used his wealth to found an observatory in his name. Lowell’s interest in astronomy and the potential for life on other worlds developed after the release of two influential works: The Planet Mars and Its Conditions of Habitability (1892), by French Spiritualist and science writer Camille Flammarion, and Life on Mars(1893), which documented the Martian observations of Italian astronomer Giovanni Schiaparelli. The latter book featured hand-drawn surface maps of the red planet, detailing a complex system of what Schiaparelli called canali, Italian for “channels.” In English, however, the word was mistranslated as “canals,” which implied that they had been artificially created. This mistake led some to conclude that Schiaparelli had observed the constructions of an advanced civilization (canals), rather than a natural feature of the landscape (channels). Though today the canali are known to be an optical illusion, Lowell was the strongest proponent of the view that they were artificial in nature. Consequently, he dedicated the next 15 years to studying Mars at his observatory in Flagstaff, Arizona. The site in Flagstaff was chosen for its high altitude (over 7,000 feet), few cloudy nights, and distance from city lights. These criteria, though now accepted as essential for optimal observing, were pioneered by Lowell. From Arizona, the astronomer presented his findings, along with illustrations of the surface features, in three books: Mars (1895), Mars and Its Canals (1906), and Mars As the Abode of Life (1908). In his publications, Lowell suggested that the canals were evidence of the desperate efforts of a technological society to siphon water from the polar ice caps of their drying planet. While Lowell’s ideas generated much public excitement, the astronomer and his observatory were ostracized by the skeptical scientific community. Unfortunately for Lowell, his observations of Mars were not the only erroneous ones; he also sketched maps of Venus with spoke-like features emanating from a central dark spot. As the Venusian atmosphere is now known to be opaque, it was suggested that the astronomer was in fact observing an image of the blood vessels in his own eye. Despite the observer’s mishaps, Lowell made significant contributions to astronomy and, in recognition of his efforts, craters on the Moon and Mars bear his name. Most notably, he began the search that culminated in Pluto’s discovery. To explain apparent discrepancies in the orbits of Uranus and Neptune, Lowell proposed the Planet X hypothesis: an unseen ninth planet was perturbing the outer planets’ orbits. Today we know that Pluto’s gravitational influence on Uranus and Neptune is negligible, but Lowell was correct in suggesting another body resided beyond Neptune. Though Lowell would not live to see his theory affirmed, his observatory staff would. In 1930, Clyde Tombaugh, using the 13-inch astrograph, discovered the ninth “planet.” Appropriately, Pluto’s name and symbol were chosen in part due to Percival Lowell’s initials, PL. Today, the 24-inch Alvan Clark telescope, through which Lowell made his observations, is used for educational purposes. The telescope is housed in a dome designed by local bicycle mechanics and handymen, the Sykes brothers. The brothers constructed the “inverted bucket” shaped-dome out of local Ponderosa pine, and set the roof on a track so that it could rotate. Though construction was completed in only ten days, it has remained in good condition since, with the exception of the roof’s rotation mechanism. When the original metal wheels of the track stopped functioning, the observatory staff attempted to rotate the wooden roof by floating it in a ring-shaped trough of salt water. This technique was abandoned however when the salt water proved a threat to the instruments. Today, the dome lid sits atop numerous 1954 Ford pickup tires, but it’s not the only makeshift solution inside the dome: Mrs. Lowell’s frying pan remains a suitable lens cap for the guide telescope mounted on the side of the Clark refractor! As one of the oldest observatories in the U.S., the site’s history is replete with important astronomical discoveries—a tradition that continues to this day. This research ranges from Vesto Slipher’s 1912 observations of redshifted galaxies (which lent support to the expanding universe theory) to the recent determination of orbits for Pluto’s moons, Nix and Hydra. It is fitting then that the final resting place of old “Percy” is atop Mars Hill, overlooking the activities of his beloved observatory; there stands an extravagant mausoleum commissioned by Mrs. Lowell in honor of her husband." - ATLAS_OBSCURA

https://www.atlasobscura.com/lists/stargazing-spots
Nancy-pics/CC by-SA 3.0
Lowell Observatory
@postcardnews
22,027 Postcards · 1,950 Cities

Planet Parade 2025: When, Where And How To See All Planets Visibly Align In The Night Sky This Week

Located in Arizona, this observatory is represented here by Dr Gerard van Belle, its director of science, who explains the configuration of the planet parade by comparing it to a vinyl record, with the sun in the middle and the grooves in the disk representing the orbits of the other planets. The mention highlights Lowell Observatory as an authoritative scientific institution involved in helping the public understand celestial events like the rare seven-planet parade. - Liv Kelly

https://www.timeout.com/news/when-and-how-to-see-the-very-rare-planet-parade-this-week-022525
Lowell Observatory

Jon M.

Google
Lowell Observatory was a fantastic stop during my visit to Flagstaff. It’s really cool to see the place where Pluto was discovered, and the exhibits are very educational. The walking tour was excellent—our guide was very knowledgeable and made the history and science easy to understand. If you’re interested in astronomy or outer space, this is definitely the place to go. It was also a lot of fun seeing the various telescopes they have on display and learning how they were used. A great experience for all ages!

CherylbethCarter C.

Google
Excellent experience. I attended two programs : meet the planets, and constellations. Both were very informative and educational for many levels. Enjoyed the gift shop. Also enjoyed the snack bar. Saw pulled pork poblan sandwich! Wow. At night the hill top cooled quickly so ear muffs and gloves heavy winter coat. Ability to scan the stars there were 5 active huge telescopes made available with staff workers present. Had a great night.

Amos J.

Google
We stopped here on our recent trip to Flagstaff. We are very happy that we did, even though the sky did not cooperate during our visit. They have a few very nice telescopes that they let the public view through. The history of the facility is just as impressive. I had no idea this facility is where the dwarf planet Pluto was discovered. There are a lot of nice displays and exhibits to interact with. The staff were all great. The shows in the auditorium were fun and informative. We definitely recommend stopping in and checking the place out.

Alexandra B.

Google
We had a brilliant time! We saw Jupiter and the Pleiades through a telescope, learned about how Pluto was discovered, played in the learning area, and had a tour of the stars and constellations. It was absolutely brilliant and my family loved it!

Andrea C.

Google
WOW. That's all ai have to say about the updates and new visitor center. I took my family today and had a wonderful experience. The exhibits are educational, but so much more! They are interactive with sensory based learning, and everyone left with new knowledge. I have always recommended Lowell and now I can be even more enthusiasts about it. Bravo.

Olga K.

Google
What a wonderful place to visit for the whole family! Toddler play room, interactive room for all ages, demos and talks. Looks like these guys thought of it all. Very beautiful campus to walk around. Definitely go see different telescopes they have and take a look at the sun and the sun spots during the day. Make sure to come back at night because this place is happening! You will see a variety of celestial object in the sky through telescopes and with a naked eye. Make sure to ask questions. Everybody who works here is super friendly and will gladly engage in a conversation about all space matters ❤️

Mario C.

Google
I definitely recommend if you're in town to visit. The interactive entertainment is great for all ages. They even have inside playground for kids now. The outside campus is also amazing. The entire campus is ADA accessible I have a food court if you want to snack.

Kanak V.

Google
We thoroughly enjoyed our visit to the Lowell Observatory! The exhibits, engaging activities, and telescopes were absolutely fascinating. The staff was knowledgeable and made the experience even more enjoyable. We didn’t have enough time to explore everything, but we’re definitely looking forward to returning on a dark night to get the full stargazing experience!
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Joyce T.

Yelp
Visited at 7pm on Black Friday, it's pretty crowded. Driving up to the hilltop, you can see the pretty city's night lights. We went for the live constellation show at the Dark Sky Planetarium, it was the highlight of our visit. Even the moonlight (half moon) was bright, we were able to see lot of stars on the rooftop observation (cold but the heated seats helped a lot). It's so amazing to see the guide's laser pointer on the sky to help us identify the stars. We found North Star, Summer Triangle, and others zodiac stars. What a wonderful stars grazing activity. We headed to the telescope viewing area on the 2nd floor, it's cool to checkout moon and Saturn on the telescope. I hope to visit again in summer.
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Mark C.

Yelp
Even if you don't have a major interest in astronomy, there is a lot to learn here about how vast our universe truly is. Having now visited the place, I now feel that I wish I could go back in time and strategize my visit here. First off, the tickets cost $35 and the plus tickets cost $40. From what I've seen, the extra $5 gives you access to two of the lectures. Second off, my suggestion for you tourists out there is to come during the day and explore the outdoor exhibits. Unfortunately, it was night time by the time I got to the outdoor exhibits and I couldn't see anything. So do the outdoor exhibits, then do the indoor exhibits. Once it's night time, go outside again to use the outdoor telescopes to see some of the stars out there. What I didn't know is that there are shows/lectures happening throughout the entire day. For you tourists out there, you can maximize your money by coming early to see the shows and then get lunch in the nearby downtown Flagstaff and come back to see the other shows and exhibits. I got there around 5:00pm and stayed until 9:00pm. I saw 3 of the lectures and then spent the rest of the time going through the exhibits. What I love about the first floor exhibits is that some of them are hands on: you can smell other planets, listen to light waves, and even spin around on a chair. There's also a small section where it's essentially an astronomy themed children's playground. Finally, this is the place that discovered Pluto. You can see the telescope that found it and they'll explain to you how they were able to see discover Pluto in the first place. If you are in Flagstaff, this is a must see place.
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Chiamaka N.

Yelp
The Lowell Observatory is a cool place to visit if you're into astronomy! Came here to checkout the rooftop "Star Gazing Tour" and it was okay - for some reason I thought it would've been more interactive as far as what we all saw in the sky. It was more lecture style with the staff member just pointing at and explaining each star. Again, it's informative but I thought it would be more exciting than what it was. The show is only 30 min and outside on the rooftop, so dress warm (came in October so it gets COLD at night) but the seats are heated so that helps a bit. They have other exhibits throughout the center to checkout.
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Emily S.

Yelp
The staff at the Lowell observatory are so incredibly knowledgeable! It's amazing how much information they have and how well-versed in astronomy they are! I've been here twice and saw different features in the sky through their telescopes both times. My first visit was on a weekday and it was not very crowded at all; we were able to see the entire exterior of the property in under an hour. My second visit was on a Saturday and the same night as a special member event they were holding and it was incredibly crowded and took forever to get through the lines. I need to go earlier next time so I can explore the inside and watch the shows too!
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Winchelle R.

Yelp
Came here on a school field trip and could not have been more impressed by the staff, the cleanliness of the entire observatory and how cool it is! Definitely impressed.
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Jason C.

Yelp
Simply fantastic! My friend and I were feeling low energy but felt much more invigorated once we started to wander around. The exhibits are cool, and the campus is comfortably sprawling. Be sure to stay at night for the star watching experiences. Their cafe is also super good as the food is from Jitters which is amazing. Lowell Observatory is definitely worth a visit. Note, they also have lots of discounts available, and there are coupons around town as well.
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Luna H.

Yelp
This was a fun place to stop & explore with my family. The first activity room is perfect for families with younger children, there are so many easy hands on activities for kids to do. Even adults might find a few of the activities fun to do such as building a small rocket to shoot through hoops. The second room has some hands on activities for older participants as well, that are fun to explore as well. If you get tired and want to take in a show, they have a theatre that shows a number of short presentations that last anywhere from half an hour to an hour. Outside you can find a number of staff members who have telescopes set up to show you a number of different cool things to look at, answer questions and more. I also like the easy walking paths they have from building to building that allow you to enjoy the lovely weather. This is a cool spot that is worth checking out at least once.
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Kat J.

Yelp
We came to Flagstaff for spring break to relax with the family and take in the sites. My party had people from 13 to late '60s in it and everybody enjoyed The observatory the most. Luckily, it was 15 minutes away from where we are staying and we were able to spend the afternoon there, go home have dinner, and then come back in the evening to see the stars and the rooftop show. I'm not sure what I was more impressed by, the amount of telescopes and photographs able be taken on property, the fact that Pluto was discovered there or overall how it had something for everybody. And for the price, it was absolutely worth the value. You are allowed to bring water bottles with lids on campus which is a godsend because I have a son with a health condition and we need to have water available at all times. They also offer a discount for military, or AAA which saved our group over $30. Granted, we ended up turning around and spending it in the gift store but that's okay it goes towards a good cause. I highly recommend going in the evening and doing a self-guided tour to See the Pluto dome, the Clark dome, and giovale open deck observatory.

Judy B.

Yelp
We have been coming to the Lowell Observatory for years. Recently we met Dr. Larry Wasserman during a Meet a Planetary Astronomer event. In addition to being very knowledgeable, he has a down-to-earth personality and great sense of humor. I admit that we initially went into his room to get warm, but it ended up being the best part of our evening.
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sandy b.

Yelp
This is my 3rd visit. I loved the art installation in the lobby- William & Susan Ahearn. I added more photos. Lots to learn and appreciate. So glad I returned.
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Ericka S.

Yelp
I absolutely loved this and was so glad we came! We were in town for a few days and this was on my list of must-do activities. We bought our tickets online and included the 9:30 planetarium show, it was I think $40 per ticket with that. For what we experienced, learned, and saw, I thought the price was absolutely worth it. We arrived around 7:30ish on a Friday night because we wanted to experience everything else before the show started, and it was pretty busy. Being from Vegas, we didn't plan for the cooler weather at night, so we hit the gift shop first to look for something to cover up with. Pretty pricey in the gift shop, but we ended up getting 2 long-sleeved shirts from their Pluto festival which happened to be on sale for $20 each. I also got a hoodie as a souvenir for my sister and that was I believe $60. Once we got inside, we explored the room downstairs. There's another room, but it's a kids area. There were a lot of interactive exhibits and we learned so much! It was cool to see so many people there taking in all the cool stuff. We eventually made our way upstairs and looked at the wall of scientists and stuff, read the things about them, and then headed outside to the telescopes. As you walk over, there are different things to read, lit up with reddish light so that it doesn't affect the sky. There were long lines for some of the telescopes, but they moved quickly enough, and we had fun picking out different constellations while we waited. The people working at the different telescope spots were so friendly, you could tell they loved their job, and had lots of cool facts. After that, we had to make our way to the show, so we skipped about 2 other things we could have done. When we got to the top with about 10 minutes to spare, it was already very full. We found 2 seats together and were so excited to see there were buttons to turn the heaters on in the seats, it was very cold out. The seats lean back pretty far so you can look up into the sky. The lady giving the presentation was funny, super knowledgeable, and we learned sooooo much! I'm proud to say I know how to find the North Star now. This was a wonderful experience, especially coming from a city that is lit up 24/7, so we never really get to see things like this. I think this is something you 100% have to do if you are in Flagstaff.
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Elizabeth R.

Yelp
Unfortunately due to cloudy/rainy weather, the observation decks were closed. However, John made the visit worth it. He took the time to answer all of our questions and answered with care, sincerity, and intelligence. We hope to see John again soon at a Tuesday class here (which he told us about). John's a real STAR
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Marco A.

Yelp
Great people, cool gift shop, and much to learn. To my surprise, I ended up spending three hours here. Best to come in the evening obviously for stargazing. Look through the many high-end telescopes they have to see the Andromeda Galaxy, the Moon, etc. Make sure to visit the museum, talk to the staff, and attend the lecture (which I missed for next time).
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Megan E.

Yelp
10/10 - would highly recommend!!! Go at night for stargazing! They had telescopes set up at various points on campus, and guides explaining what we were looking at. The dark sky experience is totally worth the extra $5 - heated seats, a guide to explain everything, and just a brilliant experience!
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Steven G.

Yelp
We visited the Observatory two consecutive evenings in October. The (recently?) renovated visitor center is superb with many hands-on interactive activities and educational displays. We attended one of the talks in the theatre which included a brief overview of all the planets in our solar system. All of this plus the beautiful observation deck was included in the price of admission! Pro tip - don't be the person staring at your phone or turning on your flashlight on the observation deck. This will damper the experience for others while you need your eyes to adjust to the evening sky. Don't be "that" person! :)
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Cassidy B.

Yelp
Very pretty and informative! I thought it was really cool to see the history and telescopes and all of the staff were helpful in describing the exhibits and views from the telescope. Teagan in particular was very nice and answered our countless questions about space and history
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Diana P.

Yelp
This place was amazing! You could see the milky way clearly. Although freezing during this time of year we had some beautiful views that we will never forget. We didn't get to see the show they do because of nearby smoke but i still can't stop telling my friends and family how amazing this experience was
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Susan H.

Yelp
This place rocks! The staff are friendly and know their stars,planets and galaxies. Justar was wonderful on the phone and gave us great advice...come in the day to see the exhibits and then return that evening to the outdoor program with heated seats I might add. It was fantastic and Flagstaff being one of the few cities celebrating dark skies was special! Lowell's had a face lift and it's so much better than before. Come see for yourself!
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Christina M.

Yelp
If you're in Flagstaff be sure to stop at the observatory. It's a cool spot to learn about stars and planets. The view up there is nice if you're going during the daytime. I used to have annual membership but I stopped due to not going to flag enough. But it's a great place to visit. They have some fairly large telescopes for viewing stars at night.
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Damiana D.

Yelp
This place deserves as many starts as there are in the universe, I only gave it 3 only because of the distraction during all 3 lectures ....I absolutely loved this place and had a wonderful experience overall, but it was unfortunately marred by the constant disruption from children during the lectures. There were kids screaming, crying, and running in the lecture room, and the parents didn't seem to intervene. Many adults kept shushing, hoping the parents would take the hint, but nothing changed. It would be great if they could offer separate lectures for adults, and for families, so those who are there to genuinely learn can fully enjoy the experience without the distractions.
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Tatum R.

Yelp
This is a must-see if you're visiting Flag. The new renovations are incredible and there was so much to do. I loved that in the museum area, there were interactive learning areas for kids and adults. Plan your trip ahead of time to make sure you catch the right shows, but they have a good variety throughout the day. We were able to see the moon through one of the best telescopes and paid $5 extra for a lecture and guided night viewing on the roof (the weather wasn't too cold when we went, but they did have heated seats which was a nice touch). Would definitely come back!

T M.

Yelp
The Lowell Observatory is a COMPLETE WASTE of gas, time & a whole lot of money!! We paid $175 for a family of 6!!! We walked around and looked through a few large telescopes at bright lights that we were told were Mars, Mercury & a star. The sun was a the only thing that we could actually see that was cool. It was a bright reddish orange color with flairs coming off the sides of it. You could also see dark spots on the surface. Other than that it was several long lines and nothing interesting to see. They charge $5 extra to sit on top of the viewing deck to look at stars.....like the $35 entrance fee isn't enough!!! Over all very disappointing and not worth the trip or cost. We should have went to a movie instead......It would have been cheaper and more enjoyable!!
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Lisa D.

Yelp
I would like to thank Rowen for providing friendly service, jam packed with useful info. Because of his knowledge we purchased a year membership and were first in line to use the telescope!! The place is so much fun and staffed with knowledgeable and friendly individuals. We had such a relaxing great time! There is a lot to see and do. Check out the gift shop for some fun mementos. Arrive early as parking can be a challenge and spot dont open quickly. This is a slow leisure, enjoy the sights kinda visit.
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Scott H.

Yelp
We got there late on a Monday night having come from the Grand Canyon Railway. We were hoping for lots of telescopes and a neat movie - but there were only 3 telescopes open (it was still really need to look through) but they were rushing everyone through the largest, due to a line, which tarnished the experience. The movie stopped playing 15 minutes before close - there were no signs. Not sure it was worth the $75 given our limited time. I do think there's lots to experience if you're there for a full day - Star gazing, sun viewing, etc. They are closed on Tuesday - so plan ahead.
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Michael M.

Yelp
Very impressive, very well run and staff were outstanding. Highly recommend if in the area, very reasonable priced.
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Lindsay K.

Yelp
Only not rating 5 stars because I think it's extremely pricy. We loved touring through the observatory & interacting with the exhibits.
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Alyssa H.

Yelp
This is hands down one of my favorite places to visit when I'm in Flagstaff. It's such a cool experience. I love learning about the stars + planets and it's even better when you visit at night. So much to do and so much to look at. This would be a great place to visit for families!
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Clare Z.

Yelp
Not worth the $35. The kids spot might be cool for a little kids but the rest is mid. They charge extra for shows as if $35 wasn't enough. The telescopes only show a spec or two of light. I was expecting to see a plant or a up close star on the telescope and was disappointed.
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Rob J.

Yelp
Recommend: Absolutely. Remarkable observatory and the BIRTHPLACE of Pluto, by accident no less! We toured it this year (2023) during the Eclipse that took place. The facility was open to all paid personnel and offered hot drinks and tons of sweet treats to enjoy walking the grounds. A completely new expansion is being built; not sure when the completion date is but as a whole, the minimal amount of 'instructional' items to view are signs that walk you up to the main observatory that show the distance of the planets in our solar system and the few on the sides of the retractable roofed building. Very little instructional information inside the visitors center but the eldest telescope at the top of the hill, which is 125 YEARS old was an absolutely beautiful piece of machinery to see! I'm not sure if the normal price point to enter the observatory grounds is a just price, being around $30.00. In fact, I'd offer it's a bit over the top, but my family of four went to support the eclipse context of it this year and the weather was unconditionally perfect with NO wind. WIN! The new mass collected telescopes under the removable roofed building was a really cool thing to witness. Generous Staff around to guide and instruct during the eclipse, but again, a bit scant on the educational commentary minus the items on sides of the new retractable building and the 'planet walk' when you first start your way up. Enjoyed by all as an overall summary and again, would recommend stopping in if not just to learn the incredible story behind HOW they found Pluto. I'll leave that part out but it's not the way you'd THINK it was found. Cheers!

Sandy R.

Yelp
The observatory and telescope viewing was wonderful. However we paid extra for an open observation show and the moon was so bright you could not see most of the stars and constellations. Do not stay late and pay for this show unless it is a new moon or less than a quarter moon. It was a waste of time and money.
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April P.

Yelp
I've been here before they did all there 'upgrades'. The place is beautiful and seeing the telescopes is amazing. They are very disorganized, the timetables they give to view the Clark and Lowell telescope are not correct. The employees seem to be helpful, but some can't answer questions. They insist on you going to watch movies, but those are really a waste of time. It doesn't give you actual information just a few astronomers who need there 5 minutes of fame and tell you about themselves. I would have preferred information on Lowell, Tombaugh, or information about Flagstaff and the Observatory. The gift store had only 2 pictures of the famous photo of Pluto (it's really just a bunch of over priced stuff). The Cafe does not have hot chocolate and the even tell you that, just microwavable food and day old cookies. The food is ok and priced for what it is, not horribly expensive. The children's area was nice, but instead of the employees sitting and talking to each other they should have been interacting with the paying customers. Even the area next to that area was full of information. It really is a remarkable place, and we enjoyed many hours there, seeing the sun through the telescope and orions belt were the highlights. I would say half the employees where helpful and knew what they were talking about, the others are there for a paycheck. The ones running the outside modern telescopes were the most knowledgeable. The women who was in the Clark telescope was rude and not helpful as well as the older man who started the talk on the Clark and Lowell telescopes at 5 (although the pamphlet says 530), he couldn't answer a simple question and was dismissive. As much as I love science and history, I won't return.
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Jenny N.

Yelp
Most amazing views of the night sky. Pictures don't do it justice. Staff was super friendly. Went there one hour before closing and still paid full price but it was worth it to see Jupiter, Saturn, and the Milky Way.
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Bryan S.

Yelp
This Observatory is amazing and so beautiful. A definite must visit in the evening when in Flagstaff . Tip: Arrive before the sun sets and can get crowded especially with a new moon.
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Tim R.

Yelp
What an amazing historical location. It's a destination in Flagstaff that should not be missed. Pluto was discovered here.
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Holly M.

Yelp
What an incredible time! I've been in the past to listen to lectures and do the public tours. Everyone is very friendly and happy to share their knowledge. The property is lovely with lots of trails to walk. Last month we booked the private, 90-minute experience and it was incredible! You can take up to 10 people in your group and a scientist takes you through a number of celestial objects and you can even make requests. I highly recommend it!
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Ha L.

Yelp
The observation deck is wonderful! The people working there are knowledgeable. The learning from there is priceless and the kids had a blast too
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M P.

Yelp
If you haven't been since the remodel late last year you need to go! It is unbelievable. Lots of interactive exhibits geared toward laypeople. I was so impressed I got an annual membership. Very well done!

John T.

Yelp
This is an amazing place. The all day lecture series along with a slide presentation is fantastic. The auditorium is not to be missed. Each lecture is different lasting about 20 minutes. And, don't miss their dark sky lecture. It only $5.00 extra and very interesting. It's a 35 minutes long presentation, looking at Flagstaff dark sky. The program is at 8:30 than again at 9:30. In the summer choose the 9:30 show when it's really dark. Dress warmly, even though the seats are heated. The staff is very knowledgeable and friendly. We plan on coming back again when we are in Flagstaff.

Viki M.

Yelp
Understand that I love astronomy and value the fact that there is a well-known observatory to visit in Flagstaff. The history of the place is important as it is the. observatory where Pluto was discovered. I was very much looking forward to visiting with my family, including two grandkids, ages 4 and 6 -- hoping the kids would find something to interest them. Pros: Interesting to see some small telescopes in use during the day to observe the sun and moon. Note: visiting AT NIGHT to view the sky with their sophisticated telescopes would have made a fantastic visit and well worth the cost of admission. Cons: The 'movie' they advertise about viewing celestial bodies to music is not informative and downright boring. Ironically, the largest exhibit was specifically for kids (my grandkids enjoyed the observatory more than the adults!). But the exhibits in the building were dull and sparse. Not worth the price unless you go for night viewing.
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Helena A.

Yelp
We visited this place at night. What a great, unplanned visit while we were in Flagstaff! Seeing the telescopes was really cool, especially the one that they used to discover Pluto. The back story was truly interesting. But the best moment was the observation deck where we were able to see through one of the many modern telescopes and saw Jupiter and its four moons! After this we also had a tour of the star constellations by one of their resident astronomers. It was freezing out but this was worth every minute.

Lee S.

Yelp
The Lowell Observatory was where the scientists first identified Pluto. They had telescopes set up outside when we were there and we could see Jupiter during the day as well as observe the sun through filtered lenses. Inside they also had a large exhibit area that had facts, pictures and demonstrations. They are also open after dark for even better viewing of the skies, however we weren't able to return to do that.
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Janelle F.

Yelp
If you love science, stars, views or all of the above this place is so worth the stop. East to get to, plenty of parking and the views from up top are awesome. There are fours available, plenty of walkable trails where you can stop to read and so much more. Tickets need to be purchased depending on what you're wanting to do, but again if you love to learn and see new things this is a must. We didn't have time to do the full tour, but walking the property was heaven.

Kris F.

Yelp
We were here summer of '24 and it was AMAZING!! They have changed their programming and now it was just meah. Last year, the story of Pluto was an hour long presentation, now it's an open house style discussion. We found out so much more detailed information last year. We felt that the entire experience was just lacking this year. Not all change is good. They really need to go back to how it was in '24. We left there on fire and super excited to bring friends there. Now I doubt we will ever be back.

maria h.

Yelp
A great planetarium fir children and adults. I went in the evening so I could see Saturn through a telescope outside in the nighttime. It was amazing. It was a surprise find for me.
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Ryllie G.

Yelp
Literally a waste of your time and money. Long lines to basically see a few stars through a telescope that aren't interesting. The Pluto telescope that is not functional was actually the most interesting part of it. The woman in that building was friendly & knowledgeable le.
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Alana N.

Yelp
I really wanted to like this place but it didn't deliver. Nothing was open the day we went. We weren't able to see or use any of the cool telescopes that we paid to see. Admission is $30 on a weekday, which is suuuper high for an observatory. The LA Griffith park observatory is free and there's much to do there. So I had a hard time justifying the price tag at Lowell. The grounds are nice and well kept, it's beautiful here and very quiet. Walking around was the highlight honestly.
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Michael R.

Yelp
Took three grand kids (age 7,9,11) for the first time. The presentations kept all of their attention. The grounds are incredible and the view down on Flagstaff is as gorgeous as the view into the skies. We were able to see the sun through their telescope using a filter. Great staff throughout the facility to answer questions and give insight to the overall facility. Prices are great for a family to join! We purchased an annual pass that gives us access to several other sites. The kids appreciated the direct tie to Meteor Crater. They had just visited there. Putting the two together and linking to active NASA projects was interesting.
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John M.

Yelp
You will be pleasantly surprised at the reasonable price for a day full of interesting things to do. On a recent trip to Flagstaff, we went there and asked questions 1st. they were very informative. about how their programs work. I do recommend calling or visiting 1st as the schedule varies each day. All of the activities are very educational as well as fun. Staff is very knowledgeable and willing to engage with you. of course, this is a weather limited activity place. If it is cloudy, it won't be as cool as on a clear day or night, but it's still worth the experience....
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Doc H.

Yelp
#OMG! If you haven't been here or haven't been here in a while.... You're in for a treat! I took my out of town guest to see the place that discovered Pluto and it was an amazing visit. We went during the day and had a few informative tours. We were told to come back later that night (price is for the day so you can go during the day and come back at night to look through the telescopes) and view what treats the telescopes were giving. I found that the best viewing is around September time to see the planets. We had the pleasure of looking at the moon and some star clusters. It was a lot of fun for everyone. We're were also allowed to look through the Lowell telescope that discovered Pluto. The original one. Really!!! It was more than we could have imagined and hoped for. Enjoy!