Denver Astronomical Society 🔭
@denverastro.bsky.social
Our mission is to increase public knowledge about #astronomy, promote the importance of maintaining dark skies, and encourage careers in astronomy, #space science, #astrophysics, and other physical sciences.
Join us at denverastro.org
#das #denverastro
Join us at denverastro.org
#das #denverastro
Join us tonight at Chamberlin Observatory for International Observe the Moon Night! Free family fun, telescope viewing, hands-on astronomy, and activities with DAS, DarkSky Colorado, PSI, Space Foundation, CPW, DU, MSU Denver, CU Denver, DPL, and Wings Over the Rockies.
September 19, 2026 at 3:29 PM
Join us tonight at Chamberlin Observatory for International Observe the Moon Night! Free family fun, telescope viewing, hands-on astronomy, and activities with DAS, DarkSky Colorado, PSI, Space Foundation, CPW, DU, MSU Denver, CU Denver, DPL, and Wings Over the Rockies.
We’re excited to welcome amazing partners to Moon Night: DarkSky Colorado, Planetary Science Institute, Space Foundation Discovery Center, CPW/Jackson Lake, DU, MSU Denver, CU Denver, Denver Public Library, and Wings Over the Rockies.
Chamberlin Observatory
Sept. 19, 5–10 p.m.
Chamberlin Observatory
Sept. 19, 5–10 p.m.
September 10, 2026 at 4:08 PM
We’re excited to welcome amazing partners to Moon Night: DarkSky Colorado, Planetary Science Institute, Space Foundation Discovery Center, CPW/Jackson Lake, DU, MSU Denver, CU Denver, Denver Public Library, and Wings Over the Rockies.
Chamberlin Observatory
Sept. 19, 5–10 p.m.
Chamberlin Observatory
Sept. 19, 5–10 p.m.
Free family Moon night in Denver!
Join Denver Astronomical Society for International Observe the Moon Night on Sat., Sept. 19, 5–10 p.m. at historic Chamberlin Observatory and Observatory Park.
Telescopes, Moon activities, demos, and more.
denverastro.org/ObserveTheMoon
Join Denver Astronomical Society for International Observe the Moon Night on Sat., Sept. 19, 5–10 p.m. at historic Chamberlin Observatory and Observatory Park.
Telescopes, Moon activities, demos, and more.
denverastro.org/ObserveTheMoon
September 10, 2026 at 4:01 PM
Free family Moon night in Denver!
Join Denver Astronomical Society for International Observe the Moon Night on Sat., Sept. 19, 5–10 p.m. at historic Chamberlin Observatory and Observatory Park.
Telescopes, Moon activities, demos, and more.
denverastro.org/ObserveTheMoon
Join Denver Astronomical Society for International Observe the Moon Night on Sat., Sept. 19, 5–10 p.m. at historic Chamberlin Observatory and Observatory Park.
Telescopes, Moon activities, demos, and more.
denverastro.org/ObserveTheMoon
Save the date!
We're celebrating International Observe the Moon Night at Chamberlin Observatory and Observatory Park.
Saturday, Sept. 19, 2026
5–10 p.m.
Telescopes, Moon activities, NASA materials, giveaways, family-friendly science, and more.
Free RSVP:
www.eventbrite.com/e/open-house...
We're celebrating International Observe the Moon Night at Chamberlin Observatory and Observatory Park.
Saturday, Sept. 19, 2026
5–10 p.m.
Telescopes, Moon activities, NASA materials, giveaways, family-friendly science, and more.
Free RSVP:
www.eventbrite.com/e/open-house...
August 20, 2026 at 2:09 AM
Save the date!
We're celebrating International Observe the Moon Night at Chamberlin Observatory and Observatory Park.
Saturday, Sept. 19, 2026
5–10 p.m.
Telescopes, Moon activities, NASA materials, giveaways, family-friendly science, and more.
Free RSVP:
www.eventbrite.com/e/open-house...
We're celebrating International Observe the Moon Night at Chamberlin Observatory and Observatory Park.
Saturday, Sept. 19, 2026
5–10 p.m.
Telescopes, Moon activities, NASA materials, giveaways, family-friendly science, and more.
Free RSVP:
www.eventbrite.com/e/open-house...
TICKET RELEASE!
We have just released 74 Bonus Astronomy Night tickets for July, including 6 more for TOMORROW NIGHT, July 2nd🤩!
Grab them while you can, and spend a summer night with us at DU's historic @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
We have just released 74 Bonus Astronomy Night tickets for July, including 6 more for TOMORROW NIGHT, July 2nd🤩!
Grab them while you can, and spend a summer night with us at DU's historic @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
July 1, 2026 at 11:55 AM
TICKET RELEASE!
We have just released 74 Bonus Astronomy Night tickets for July, including 6 more for TOMORROW NIGHT, July 2nd🤩!
Grab them while you can, and spend a summer night with us at DU's historic @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
We have just released 74 Bonus Astronomy Night tickets for July, including 6 more for TOMORROW NIGHT, July 2nd🤩!
Grab them while you can, and spend a summer night with us at DU's historic @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
🗓️ Save the Date! The DAS Members' Picnic returns July 25 at Chamberlin Observatory. Great food, observatory tours, solar observing, volunteer recognition, and time with fellow members. RSVP: members.denverastro.org/event-6733636
June 19, 2026 at 4:23 PM
🗓️ Save the Date! The DAS Members' Picnic returns July 25 at Chamberlin Observatory. Great food, observatory tours, solar observing, volunteer recognition, and time with fellow members. RSVP: members.denverastro.org/event-6733636
The June DAS Astrophotography Gallery is here!
See images of the North America Nebula, Veil Nebula, M13, M51, M81/M82, the Virgo Triplet, Jupiter, Kīlauea volcano, Markarian's Chain, and more from our talented ASIG members.
www.denverastro.org/das-astropho...
#astrophotography #astronomy
See images of the North America Nebula, Veil Nebula, M13, M51, M81/M82, the Virgo Triplet, Jupiter, Kīlauea volcano, Markarian's Chain, and more from our talented ASIG members.
www.denverastro.org/das-astropho...
#astrophotography #astronomy
June 6, 2026 at 5:01 PM
The June DAS Astrophotography Gallery is here!
See images of the North America Nebula, Veil Nebula, M13, M51, M81/M82, the Virgo Triplet, Jupiter, Kīlauea volcano, Markarian's Chain, and more from our talented ASIG members.
www.denverastro.org/das-astropho...
#astrophotography #astronomy
See images of the North America Nebula, Veil Nebula, M13, M51, M81/M82, the Virgo Triplet, Jupiter, Kīlauea volcano, Markarian's Chain, and more from our talented ASIG members.
www.denverastro.org/das-astropho...
#astrophotography #astronomy
Trustee Emeritus Jack Eastman: More Than Half a Century with DAS
www.denverastro.org/trustee-emer...
From Griffith Observatory to Chamberlin Observatory, longtime DAS member Jack Eastman has spent more than 50 years sharing astronomy with others.
www.denverastro.org/trustee-emer...
From Griffith Observatory to Chamberlin Observatory, longtime DAS member Jack Eastman has spent more than 50 years sharing astronomy with others.
June 2, 2026 at 7:50 PM
Trustee Emeritus Jack Eastman: More Than Half a Century with DAS
www.denverastro.org/trustee-emer...
From Griffith Observatory to Chamberlin Observatory, longtime DAS member Jack Eastman has spent more than 50 years sharing astronomy with others.
www.denverastro.org/trustee-emer...
From Griffith Observatory to Chamberlin Observatory, longtime DAS member Jack Eastman has spent more than 50 years sharing astronomy with others.
This week in Denver astronomy:
🔭 3 star parties!
• RMNP (Fri)
• NCAS at Sylvan Dale Ranch (Sat)
• CSAS at Florissant Fossil Beds (Sat)
Plus a Jupiter-Venus-Mercury meetup after sunset.
www.denverastro.org/whats-up-in-...
🔭 3 star parties!
• RMNP (Fri)
• NCAS at Sylvan Dale Ranch (Sat)
• CSAS at Florissant Fossil Beds (Sat)
Plus a Jupiter-Venus-Mercury meetup after sunset.
www.denverastro.org/whats-up-in-...
June 2, 2026 at 7:47 PM
This week in Denver astronomy:
🔭 3 star parties!
• RMNP (Fri)
• NCAS at Sylvan Dale Ranch (Sat)
• CSAS at Florissant Fossil Beds (Sat)
Plus a Jupiter-Venus-Mercury meetup after sunset.
www.denverastro.org/whats-up-in-...
🔭 3 star parties!
• RMNP (Fri)
• NCAS at Sylvan Dale Ranch (Sat)
• CSAS at Florissant Fossil Beds (Sat)
Plus a Jupiter-Venus-Mercury meetup after sunset.
www.denverastro.org/whats-up-in-...
DAS Members: We need your help.
Please take our anonymous 10-question member survey by June 14. It takes about 5 minutes and will help DAS understand what’s working, what needs improvement, and how to better serve all members.
members.denverastro.org/Sys/Poll/73189
Please take our anonymous 10-question member survey by June 14. It takes about 5 minutes and will help DAS understand what’s working, what needs improvement, and how to better serve all members.
members.denverastro.org/Sys/Poll/73189
May 28, 2026 at 2:31 PM
DAS Members: We need your help.
Please take our anonymous 10-question member survey by June 14. It takes about 5 minutes and will help DAS understand what’s working, what needs improvement, and how to better serve all members.
members.denverastro.org/Sys/Poll/73189
Please take our anonymous 10-question member survey by June 14. It takes about 5 minutes and will help DAS understand what’s working, what needs improvement, and how to better serve all members.
members.denverastro.org/Sys/Poll/73189
Such a fun night!
We got to see the ISS fly over @chamberlin-obs.bsky.social tonight — and hear it too, thanks to a @denverastro.bsky.social member with a ham radio! 🤩
May 24, 2026 at 1:50 PM
Such a fun night!
Star party season is almost here!
Based on advice from longtime DAS member and trustee Joe Gafford, our latest guide covers star party etiquette, red light discipline, astrophotography courtesy, camping prep, and more.
Read more:
www.denverastro.org/dont-be-a-pa...
Based on advice from longtime DAS member and trustee Joe Gafford, our latest guide covers star party etiquette, red light discipline, astrophotography courtesy, camping prep, and more.
Read more:
www.denverastro.org/dont-be-a-pa...
May 19, 2026 at 3:01 PM
Star party season is almost here!
Based on advice from longtime DAS member and trustee Joe Gafford, our latest guide covers star party etiquette, red light discipline, astrophotography courtesy, camping prep, and more.
Read more:
www.denverastro.org/dont-be-a-pa...
Based on advice from longtime DAS member and trustee Joe Gafford, our latest guide covers star party etiquette, red light discipline, astrophotography courtesy, camping prep, and more.
Read more:
www.denverastro.org/dont-be-a-pa...
What’s Up in Denver? May 18th–24th, 2026 🌙
This week features beautiful Moon pairings with Venus, Jupiter, Castor & Pollux, plus DAS Open House at Chamberlin Observatory on May 23 and public events across Colorado.
Read the full weekly guide:
www.denverastro.org/whats-up-in-...
This week features beautiful Moon pairings with Venus, Jupiter, Castor & Pollux, plus DAS Open House at Chamberlin Observatory on May 23 and public events across Colorado.
Read the full weekly guide:
www.denverastro.org/whats-up-in-...
May 19, 2026 at 3:00 PM
What’s Up in Denver? May 18th–24th, 2026 🌙
This week features beautiful Moon pairings with Venus, Jupiter, Castor & Pollux, plus DAS Open House at Chamberlin Observatory on May 23 and public events across Colorado.
Read the full weekly guide:
www.denverastro.org/whats-up-in-...
This week features beautiful Moon pairings with Venus, Jupiter, Castor & Pollux, plus DAS Open House at Chamberlin Observatory on May 23 and public events across Colorado.
Read the full weekly guide:
www.denverastro.org/whats-up-in-...
#ALCON2026 is coming to Cincinnati August 12–15! 🌌
The annual astronomy convention features talks, astrophotography, citizen science, vendor exhibits, tours, and more — open to everyone, not just Astronomical League members.
Learn more: www.alcon2026.org
The annual astronomy convention features talks, astrophotography, citizen science, vendor exhibits, tours, and more — open to everyone, not just Astronomical League members.
Learn more: www.alcon2026.org
May 15, 2026 at 3:00 PM
#ALCON2026 is coming to Cincinnati August 12–15! 🌌
The annual astronomy convention features talks, astrophotography, citizen science, vendor exhibits, tours, and more — open to everyone, not just Astronomical League members.
Learn more: www.alcon2026.org
The annual astronomy convention features talks, astrophotography, citizen science, vendor exhibits, tours, and more — open to everyone, not just Astronomical League members.
Learn more: www.alcon2026.org
Applications are now open for the 2026 DAS VNHA Scholarship through June 15.
The scholarship supports students pursuing astronomy, astrophysics, physical sciences, mathematics, and related STEM fields.
Learn more and apply:
www.denverastro.org/resources/sc...
#Astronomy #STEM #Scholarship
The scholarship supports students pursuing astronomy, astrophysics, physical sciences, mathematics, and related STEM fields.
Learn more and apply:
www.denverastro.org/resources/sc...
#Astronomy #STEM #Scholarship
VNHA Scholarship – Denver Astronomical Society
www.denverastro.org
May 13, 2026 at 7:53 PM
Applications are now open for the 2026 DAS VNHA Scholarship through June 15.
The scholarship supports students pursuing astronomy, astrophysics, physical sciences, mathematics, and related STEM fields.
Learn more and apply:
www.denverastro.org/resources/sc...
#Astronomy #STEM #Scholarship
The scholarship supports students pursuing astronomy, astrophysics, physical sciences, mathematics, and related STEM fields.
Learn more and apply:
www.denverastro.org/resources/sc...
#Astronomy #STEM #Scholarship
DAS Astrophotography Gallery for May 2026 📸✨
www.denverastro.org/das-astropho...
This month’s ASIG gallery features stunning images of M82, the Crab Nebula, Rosette, Horsehead, Thor’s Helmet, Veil Nebula, M101, M106 & more from talented DAS astrophotographers! 🌌
www.denverastro.org/das-astropho...
This month’s ASIG gallery features stunning images of M82, the Crab Nebula, Rosette, Horsehead, Thor’s Helmet, Veil Nebula, M101, M106 & more from talented DAS astrophotographers! 🌌
May 13, 2026 at 2:25 PM
DAS Astrophotography Gallery for May 2026 📸✨
www.denverastro.org/das-astropho...
This month’s ASIG gallery features stunning images of M82, the Crab Nebula, Rosette, Horsehead, Thor’s Helmet, Veil Nebula, M101, M106 & more from talented DAS astrophotographers! 🌌
www.denverastro.org/das-astropho...
This month’s ASIG gallery features stunning images of M82, the Crab Nebula, Rosette, Horsehead, Thor’s Helmet, Veil Nebula, M101, M106 & more from talented DAS astrophotographers! 🌌
What’s Up in Denver? May 11–17, 2026
www.denverastro.org/whats-up-in-...
🌑 New Moon + Dark Sky Weekend
🔭 Star parties across the Front Range
🛰️ NASA Psyche Mars flyby
🪐 Mercury at superior conjunction
Great week for deep-sky observing! ✨
www.denverastro.org/whats-up-in-...
🌑 New Moon + Dark Sky Weekend
🔭 Star parties across the Front Range
🛰️ NASA Psyche Mars flyby
🪐 Mercury at superior conjunction
Great week for deep-sky observing! ✨
May 13, 2026 at 2:24 PM
What’s Up in Denver? May 11–17, 2026
www.denverastro.org/whats-up-in-...
🌑 New Moon + Dark Sky Weekend
🔭 Star parties across the Front Range
🛰️ NASA Psyche Mars flyby
🪐 Mercury at superior conjunction
Great week for deep-sky observing! ✨
www.denverastro.org/whats-up-in-...
🌑 New Moon + Dark Sky Weekend
🔭 Star parties across the Front Range
🛰️ NASA Psyche Mars flyby
🪐 Mercury at superior conjunction
Great week for deep-sky observing! ✨
What’s Up in Denver? May 4–10, 2026
www.denverastro.org/whats-up-in-...
🌠 η Aquariids peak
🌙 Waning Flower Moon
🪐 Moon in Sagittarius “Teapot”
🔭 Star parties + DAS meetings all week
🎉 Cinco de Mayo + Mother’s Day
Clear skies! ✨
www.denverastro.org/whats-up-in-...
🌠 η Aquariids peak
🌙 Waning Flower Moon
🪐 Moon in Sagittarius “Teapot”
🔭 Star parties + DAS meetings all week
🎉 Cinco de Mayo + Mother’s Day
Clear skies! ✨
May 1, 2026 at 5:18 PM
What’s Up in Denver? May 4–10, 2026
www.denverastro.org/whats-up-in-...
🌠 η Aquariids peak
🌙 Waning Flower Moon
🪐 Moon in Sagittarius “Teapot”
🔭 Star parties + DAS meetings all week
🎉 Cinco de Mayo + Mother’s Day
Clear skies! ✨
www.denverastro.org/whats-up-in-...
🌠 η Aquariids peak
🌙 Waning Flower Moon
🪐 Moon in Sagittarius “Teapot”
🔭 Star parties + DAS meetings all week
🎉 Cinco de Mayo + Mother’s Day
Clear skies! ✨
68 extra Astronomy Night tickets have been released for May, including a Saturday night, May 30th! Grab 'em while you can and come see us at DU's historic @Chamberlin_Obs !
denverastro.org/reservations/
denverastro.org/reservations/
May 1, 2026 at 12:44 PM
68 extra Astronomy Night tickets have been released for May, including a Saturday night, May 30th! Grab 'em while you can and come see us at DU's historic @Chamberlin_Obs !
denverastro.org/reservations/
denverastro.org/reservations/
We just had a last-minute cancellation for TONIGHT's Astronomy Night event at
@chamberlin-obs.bsky.social
at 8:30 p.m.
We have TWO tickets available.
denverastro.org/reservations/
@chamberlin-obs.bsky.social
at 8:30 p.m.
We have TWO tickets available.
denverastro.org/reservations/
Astronomy Night Reservations at Chamberlin Observatory – Denver Astronomical Society
All Astronomy Nights start with an informative, multimedia astronomy presentation by a DAS lecturer. Astronomy presentations are designed for visitors of all ages and may be illustrated with colorful computer graphics, videos, and/or other audio-visual methods as appropriate.
denverastro.org
April 9, 2026 at 10:54 PM
We just had a last-minute cancellation for TONIGHT's Astronomy Night event at
@chamberlin-obs.bsky.social
at 8:30 p.m.
We have TWO tickets available.
denverastro.org/reservations/
@chamberlin-obs.bsky.social
at 8:30 p.m.
We have TWO tickets available.
denverastro.org/reservations/
🌌 What’s Up in Denver? April 6–12
⭐ BIG EVENT: Astronomy & Earth Day at Fiske Planetarium (Sun, April 12, noon–10 PM)
Plus star parties, livestreams & lunar highlights all week 🔭
Read more:
www.denverastro.org/whats-up-in-...
⭐ BIG EVENT: Astronomy & Earth Day at Fiske Planetarium (Sun, April 12, noon–10 PM)
Plus star parties, livestreams & lunar highlights all week 🔭
Read more:
www.denverastro.org/whats-up-in-...
April 6, 2026 at 4:37 PM
🌌 What’s Up in Denver? April 6–12
⭐ BIG EVENT: Astronomy & Earth Day at Fiske Planetarium (Sun, April 12, noon–10 PM)
Plus star parties, livestreams & lunar highlights all week 🔭
Read more:
www.denverastro.org/whats-up-in-...
⭐ BIG EVENT: Astronomy & Earth Day at Fiske Planetarium (Sun, April 12, noon–10 PM)
Plus star parties, livestreams & lunar highlights all week 🔭
Read more:
www.denverastro.org/whats-up-in-...
📸 DAS Astrophotography Gallery – April 2026
New images from ASIG members featuring the Orion Nebula, Whirlpool Galaxy & more—plus an unforgettable volcano shot 🌋
Check it out:
www.denverastro.org/das-astropho...
Clear skies ✨
New images from ASIG members featuring the Orion Nebula, Whirlpool Galaxy & more—plus an unforgettable volcano shot 🌋
Check it out:
www.denverastro.org/das-astropho...
Clear skies ✨
April 6, 2026 at 4:36 PM
📸 DAS Astrophotography Gallery – April 2026
New images from ASIG members featuring the Orion Nebula, Whirlpool Galaxy & more—plus an unforgettable volcano shot 🌋
Check it out:
www.denverastro.org/das-astropho...
Clear skies ✨
New images from ASIG members featuring the Orion Nebula, Whirlpool Galaxy & more—plus an unforgettable volcano shot 🌋
Check it out:
www.denverastro.org/das-astropho...
Clear skies ✨
Skyward – April 2026 🌕
David H. Levy reflects on a total lunar eclipse, time at Palomar & the legacy of Russell W. Porter—with Mario Motta & Jean Mueller.
A beautiful mix of astronomy, history & memory.
Read more:
www.denverastro.org/of-mario-mot...
David H. Levy reflects on a total lunar eclipse, time at Palomar & the legacy of Russell W. Porter—with Mario Motta & Jean Mueller.
A beautiful mix of astronomy, history & memory.
Read more:
www.denverastro.org/of-mario-mot...
April 3, 2026 at 4:15 PM
Skyward – April 2026 🌕
David H. Levy reflects on a total lunar eclipse, time at Palomar & the legacy of Russell W. Porter—with Mario Motta & Jean Mueller.
A beautiful mix of astronomy, history & memory.
Read more:
www.denverastro.org/of-mario-mot...
David H. Levy reflects on a total lunar eclipse, time at Palomar & the legacy of Russell W. Porter—with Mario Motta & Jean Mueller.
A beautiful mix of astronomy, history & memory.
Read more:
www.denverastro.org/of-mario-mot...
Extra Astronomy Night tickets have been released for April - no joke! Grab 'em while you can and come see us at DU's historic Chamberlin Observatory @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
www.denverastro.org/reservations/
April 1, 2026 at 1:14 PM
Extra Astronomy Night tickets have been released for April - no joke! Grab 'em while you can and come see us at DU's historic Chamberlin Observatory @chamberlin-obs.bsky.social !
www.denverastro.org/reservations/
www.denverastro.org/reservations/
🚀 Humans return to deep space!
NASA’s Artemis II launches April 1, sending astronauts around the Moon for the first time since Apollo.
Details + how to watch:
www.denverastro.org/artemis-ii-h...
NASA’s Artemis II launches April 1, sending astronauts around the Moon for the first time since Apollo.
Details + how to watch:
www.denverastro.org/artemis-ii-h...
March 31, 2026 at 12:13 AM
🚀 Humans return to deep space!
NASA’s Artemis II launches April 1, sending astronauts around the Moon for the first time since Apollo.
Details + how to watch:
www.denverastro.org/artemis-ii-h...
NASA’s Artemis II launches April 1, sending astronauts around the Moon for the first time since Apollo.
Details + how to watch:
www.denverastro.org/artemis-ii-h...