Chamberlin Observatory

🚫 OPEN HOUSE CANCELLED FOR 1/24 🚫

Sorry, #Denver, no stargazing this Saturday due to unusually cold weather in the forecast! 🥶

Yep, even astronomers get cold feet sometimes. See below for an alternative indoor astro-event!

Next open house is February 21 -- hope to see you there!

🚫 OPEN HOUSE CANCELLED FOR 1/24 🚫

Sorry, #Denver, no stargazing this Saturday due to unusually cold weather in the forecast! 🥶

Yep, even astronomers get cold feet sometimes. See below for an alternative indoor astro-event!

Next open house is February 21 -- hope to see you there!

A wintry nighttime view of a red brick observatory building topped with a silver dome. The sky is dark blue and starry, with the constellation Orion hanging above the dome. A welcoming yellow light illuminates the path and steps, and snowy pine trees frame the scene.

#Denver stargazers, join us for the last open house of 2025, this SATURDAY starting at dusk! We'll point our telescopes at the Moon 🌙, Saturn 🪐, and Jupiter 👑 before the cold front rolls in. Happy New Year from us and @denverastro.bsky.social!

www.denverastro.org/events/open-...

Nice feature highlighting #astronomy research at @uofdenver.bsky.social! Always a treat to show off our beautiful observatory as well. 🔭🧪 @chamberlin-obs.bsky.social

What to expect:

1) The show continues overnight

2) There’s a chance that tomorrow night’s northern lights show is even better than tonight’s (more below).

(Disclaimer: I am not a space weather meteorologist, but the folks below are, and I did stay at a Holiday Inn Express)

A night scene of pink streaky aurorae above a lit building

A night scene of pink and green aurorae behind silhouettes of trees and power lines

A night scene of red aurorae with a flamelike structure, behind houses and trees

🚨HEY DENVER, GO LOOK AT THE SKY!!! 🚨

Never seen aurorae this good before. 🤯 They were totally naked-eye around 9:45pm from south Denver, bright red and green. They're coming and going, so if you don't see anything at first, try again later!

Pics with an iPhone 13, 3-sec exposures

Wide-shot time-lapse photograph of DU's historic Chamberlin Observatory at night. Above the dome to the left is Polaris, the North Star, and the other stars of the night sky are circling around it. The building is dimly lit, and red light can be seen in the windows upstairs inside the dome, which is open to the south. Tall pine trees surround the building.

#Denver stargazers: come on over for an open house and star party with @denverastro.bsky.social TONIGHT, starting around 5pm!

www.denverastro.org/events/open-...

It's pretty special! Looking forward to more Saturny goodness tonight! 🪐💖

Hey, no need for competition. Plenty of astro events for all! 🤩

A bright comet seen against a dark starry background, taken with my Seestar smart scope. The head of the comet at lower left is fuzzy and faintly greenish; the tail extends to upper right and includes a brighter central streak. The caption labels it "C-2025 A6, 3 min" and gives the coordinates of the observing location.

Hey #Denver, it's going to be a beautiful night for a star party! ✨ Come on over for telescope viewing and building tours with @denverastro.bsky.social! We'll be looking at the Moon 🌙, Saturn 🪐, and at least one comet ☄️. FREE and fun for everyone!

Info: www.facebook.com/events/72664...

Huge thanks as always to @denverastro.bsky.social for running these popular events!

Interior of the University of Denver's historic Chamberlin Observatory. A long white telescope stands on a black pillar in the center of a round room with brick red walls and a curved gray ceiling. The telescope is pointing out an opening in the dome toward a dark blue sky. People are standing around the room waiting their turn to climb a ladder at right that allows them to look through the telescope.

🔭 Heads up, #Denver! Our next FREE star party is happening this Saturday! Come on over to look through our telescopes, tour the historic building, and meet our amazing @uofdenver.bsky.social physics students! ✨

Bonus: Saturn is back! 🪐

www.denverastro.org/events/open-...

YouTube video by University of Denver Welcome Back, Staff & Faculty! | University of Denver

Our beautiful historic telescope is featured in the back-to-school welcome message from @uofdenver.bsky.social!

www.youtube.com/watch?v=2yVO...

Find our schedule and other info at www.denverastro.org.

Next open house and star party will be Saturday, Sept. 27. Mark your calendars for science fun and stargazing with @denverastro.bsky.social!

Heads up, #Denver! Our next ✨ FREE ✨ stargazing event at @chamberlin-obs.bsky.social is happening next Saturday, 8/2! Come on over and let the experts of @denverastro.bsky.social show you the stars of late summer!

(Note, start time is 8pm, not 8am as implied in the link 😄)

Former Grand Canyon Astronomer in Residence on Public Lands In this blog series, former Grand Canyon Artists and Astronomers in Residence reflect on the important role America's public lands play in art and science.

I wrote a thing! 🏞️🌌

www.grandcanyon.org/about/news/f...

Jennifer Hoffman is a Guardian of the Galaxy University of Denver professor and Chamberlin Observatory director Jennifer Hoffman helps Coloradans find wonder—and perspective—in the night sky.

I've been called many things, but this is a new one. 😆🤓 Thanks to Sahale Greenwood at Denver Life Magazine for the lovely profile! Also featuring @uofdenver.bsky.social, @chamberlin-obs.bsky.social, and @denverastro.bsky.social . 💖

www.denverlifemagazine.com/jennifer-hof...

Good morning, fellow astro-enthusiasts! It's June 1st, and we just unlocked two additional Astronomy Nights for this month - June 7th and 21st! That's 40 previously unavailable tickets.

Book your slots now at denverastro.org/reservations

@chamberlin-obs.bsky.social

A red brick observatory building with a green door and a metal dome. It is dusk, the dome slit is open, and there are two bright lights on the outside of the building.

#Denver #astronomy fans, come over to @chamberlin-obs.bsky.social tonight for some stargazing! I'll be there along with the physics students from @uofdenver.bsky.social and the lovely people from @denverastro.bsky.social . ✨🔭
Details --> www.denverastro.org

Former GCC Astronomer in Residence on the Importance of Public Lands In this blog series, former Grand Canyon Artists and Astronomers in Residence reflect on the important role America's public lands play in art and science.

I was asked to join in a series of blog posts about the importance of public lands, so I wrote about how the Grand Canyon, and the Solar System, is so much more than a checklist of things to see. It inspires us to ask questions, learn, and grow: www.grandcanyon.org/about/news/g...

Hey #Denver, come on over for some stargazing with @denverastro.bsky.social this Saturday night! ✨🔭

www.denverastro.org/events/open-...

DU's historic Chamberlin Observatory

We just canceled a reservation for this evening, so we have FOUR TICKETS available immediately for tonight's Astronomy Night at 8:30 pm at @chamberlin-obs.bsky.social .

Grab these now at denverastro.org/reservations!
***

#Denver stargazers, join us SATURDAY 4/5 for our monthly open house and star party with @denverastro.bsky.social! The Moon 🌓 will look lovely near Mars and Gemini, and Jupiter 👑 is still hanging out with the colorful bright stars in Taurus and Orion. FREE and great for kids! See you there! ✨🔭

🌟 The April 2025 edition of The Evening Sky Map is ready for download at skymaps.com/tesm/. The PDF includes a Sky Calendar and user-friendly star maps for the northern and southern hemispheres, as well as equatorial regions. Please share and enjoy exploring the Universe! 🔭
#astronomy #stargazing

March equinox 2025: Here’s all you need to know

Oh hey, happy equinox. For me it's always a nice reminder to ponder the interrelatedness of everything on Earth. The cosmos is lots bigger than us, but this is still the only home we know. What we do here matters.

Overhead view of DU's historic Chamberlin Observatory. Due to a few cancellations, we have some last-minute availability for Astronomy Nights over the next week. Three tickets are available for Thursday, March 13, and two tickets are available for Tuesday, March 18th. Book your visit today! https://www.denverastro.org/public-night-reservations/ * * * * * All Astronomy Nights start with a DAS lecturer’s informative, multi-media astronomy presentation. Astronomy presentations are designed for visitors of all ages and may be illustrated with colorful computer graphics shows, videos, and/or whatever audio/visual method is appropriate. After the presentation, visitors may be treated to telescopic views of the moon, stars and star clusters, planets, galaxies, nebulae, etc., through Chamberlin’s historic, 28-foot long, 20-inch aperture Alvan Clark-Saegmuller refracting telescope (weather permitting). On cloudy nights, visitors will view and learn about the telescope and receive a tour of the observatory, including its various clocks, the meridian telescope, the library, wall displays, and an animated video display of the night sky for that month. DAS volunteers will happily answer questions about astronomy, astronomical observing, and the observatory.

Due to a few cancellations, we have some last-minute availability for Astronomy Nights over the next week. Three tickets are available for Thursday, March 13, and two for Tuesday, March 18th.

Book your visit today!
www.denverastro.org/public-night...

@chamberlin-obs.bsky.social

Astronomers discover 128 new moons orbiting Saturn Planet now has 274 moons, almost twice as many as all the other planets in the solar system combined Astronomers have discovered 128 new moons orbiting Saturn, giving it an insurmountable lead in the running tally of moons in the solar system. Until…

Astronomers discover 128 new moons orbiting Saturn

Graphic showing the Moon and M44 in the southern sky over Denver on March 10 around 10pm MDT

What’s Up in Denver? March 10th through 16th, 2025

Total Lunar Eclipse, 3 Virtual Lectures, DAS Astronomy 101 begins, DAS Spring Banquet, the Gibbous moon makes its way across the sky, and more.

www.denverastro.org/whats-up-in-...

#denverastro #das #astronomy #eclipse

TONIGHT!!! The planets await!