Greenbank Star Quest
2025-06-25 - 2025-06-28 | Green Bank Observatory, 155 Observatory Road, Green Bank, WV, 24944, United States
Star Quest is an optical and radio astronomy event held at the great dark-sky site of the Green Bank Observatory. They have lectures and classes all four days of the event and keynote speakers each evening. You may register to stay at the bunkhouse or reserve a spot at the campground and observe right from your campsite. Showers and toilets are available by the campground, and additional showers and toilets are located in the bunkhouse.
This star party is not hosted by the Astronomical Society of Greenbelt. It is listed here as a courtesy to another club in the Mid-East Region of the Astronomical League. Please consult the event website for the most up-to-date information.

Monthly Meeting
2025-04-24 19:00 - 21:00, 2025-11-20 19:00 - 21:00 (America/New_York) | Greenbelt Community Center, 15 Crescent Road, Greenbelt, MD, 20770, United States
Our monthly meetings are usually held on the last Thursday of each month. Our speakers are drawn from all around the country, including experts from NASA, the Smithsonian, the National Radio Astronomy Observatory, and other scientific institutions. Our members also give presentations about subjects of interest to amateur astronomers.
The events are held at the Greenbelt Community Center. We encourage visitors to attend in person, although we will also broadcast the talk on Zoom. Come back a few days before the meeting to see how to join the Zoom meeting. We begin the meetings at 7:00 pm with informal conversation. The presentation begins at 7:30 pm.
The presentations are free and open to the public.
Per our insurance requirements, anyone under 18 years old must be accompanied by a parent or guardian.

Star Party
2025-06-28 21:30 - 23:30, 2025-07-19 21:30 - 23:30, 2025-07-26 21:00 - 23:00, 2025-08-23 21:00 - 23:00, 2025-09-13 20:30 - 22:30, 2025-09-20 20:00 - 22:00, 2026-02-14 19:00 - 21:00, 2026-03-07 19:00 - 21:00 and 2 more dates | City of Greenbelt Observatory, 8101 Northway Road, Greenbelt, MD, 20770, United States
Weather permitting, we will hold a star party at the Greenbelt Observatory. The observatory will be open to visitors to view the wonders of the heavens. People are also welcome to bring their own telescopes to set up for observation.
The event is open to members and non-members of all ages at no cost. We provide a fun, family-friendly environment for learning about the universe. This is a great way to meet other astronomers in the community. And, if you are new to the hobby, members are always willing to help you learn how to use your telescope.
Our star parties generally begin about an hour after sunset and run for two hours.
Please note that star parties may be canceled without prior notice in the event of overcast skies or extremely inclement weather conditions. In addition, the observatory is made of metal and has no heating or cooling system. Please be aware that the temperature inside will be roughly the same inside as it is outside, although in summer it is sometimes hotter inside. Please dress accordingly.
In accordance with Prince George’s County guidelines, masks are voluntary.

Star Party
2025-08-30 20:30 - 22:30 | City of Greenbelt Observatory, 8101 Northway Road, Greenbelt, MD, 20770, United States
Weather permitting, we will hold a star party at the Greenbelt Observatory. The observatory will be open to visitors to view the wonders of the heavens. This event will be dedicated to observations of the moon. People are also welcome to bring their own telescopes to set up for observation.
The event is open to members and non-members of all ages at no cost. We provide a fun, family-friendly environment for learning about the universe. This is a great way to meet other astronomers in the community. And, if you are new to the hobby, members are always willing to help you learn how to use your telescope.
Our star parties generally begin about an hour after sunset and run for two hours.
Please note that star parties may be canceled without prior notice in the event of overcast skies or extremely inclement weather conditions. In addition, the observatory is made of metal and has no heating or cooling system. Please be aware that the temperature inside will be roughly the same inside as it is outside, although in summer it is sometimes hotter inside. Please dress accordingly.
In accordance with Prince George’s County guidelines, masks are voluntary.

Star Party
2025-09-27 20:00 - 22:00, 2025-10-18 19:30 - 21:30, 2025-10-25 19:30 - 21:30, 2025-11-15 18:00 - 20:00, 2025-11-22 18:00 - 20:00, 2025-12-13 18:00 - 20:00, 2025-12-20 18:00 - 20:00 | City of Greenbelt Observatory, 8101 Northway Road, Greenbelt, MD, 20770, United States
Weather permitting, we will hold a star party at the Greenbelt Observatory. The observatory will be open to visitors to view the wonders of the heavens. This event is dedicated to observations of the moon. People are also welcome to bring their own telescopes to set up for observation.
The event is open to members and non-members of all ages at no cost. We provide a fun, family-friendly environment for learning about the universe. This is a great way to meet other astronomers in the community. And, if you are new to the hobby, members are always willing to help you learn how to use your telescope.
Our star parties generally begin about an hour after sunset and run for two hours.
Please note that star parties may be canceled without prior notice in the event of overcast skies or extremely inclement weather conditions. In addition, the observatory is made of metal and has no heating or cooling system. Please be aware that the temperature inside will be roughly the same inside as it is outside, although in summer it is sometimes hotter inside. Please dress accordingly.
In accordance with Prince George’s County guidelines, masks are voluntary.

CANCELLED: Star Party
2026-01-24 18:30 - 20:30, 2026-02-07 18:30 - 20:30 | City of Greenbelt Observatory, 8101 Northway Road, Greenbelt, MD, 20770, United States
THIS EVENT HAS BEEN CANCELLED DUE TO POOR WEATHER CONDITIONS
Weather permitting, we will hold a star party at the Greenbelt Observatory. The observatory will be open to visitors to view the wonders of the heavens. People are also welcome to bring their own telescopes to set up for observation.
The event is open to members and non-members of all ages at no cost. We provide a fun, family-friendly environment for learning about the universe. This is a great way to meet other astronomers in the community. And, if you are new to the hobby, members are always willing to help you learn how to use your telescope.
Our star parties generally begin about an hour after sunset and run for two hours.
Please note that star parties may be canceled without prior notice in the event of overcast skies or extremely inclement weather conditions. In addition, the observatory is made of metal and has no heating or cooling system. Please be aware that the temperature inside will be roughly the same inside as it is outside, although in summer it is sometimes hotter inside. Please dress accordingly.
In accordance with Prince George’s County guidelines, masks are voluntary.

CANCELLED: Monthly Meeting
2026-01-29 19:30 - 21:30 | Greenbelt Community Center, 15 Crescent Road, Greenbelt, MD, 20770, United States
THIS EVENT HAS BEEN CANCELLED DUE TO POOR WEATHER CONDITIONS
Check back to the calendar later, as Dr. Jonathan Mawdsley will be doing their presentation in a different month.
Dr. Jonathan Mawdsley will be speaking on “The Galileo Affair”, an exploration of the differing worldviews engaged in the historic conflict between Galileo and the Catholic Church, with a particular focus on Robert Bellarmine, Cardinal, Saint and doctor of the Church.
Our monthly meetings are usually held on the last Thursday of each month. Our speakers are drawn from all around the country, including experts from NASA, the Smithsonian, the National Radio Astronomy Observatory, and other scientific institutions. Our members also give presentations about subjects of interest to amateur astronomers.
The events are held at the Greenbelt Community Center. We encourage visitors to attend in person, although we will also broadcast the talk on Zoom. The zoom session opens at 7:00 PM for set-up and technical glitches. The link is below.
The presentations are free and open to the public.
Per our insurance requirements, anyone under 18 years old must be accompanied by a parent or guardian.

Zoom Meeting:
CANCELLED
Topic: ASG Jan 2026
Time: Jan 29, 2026 07:00 PM Eastern Time (US and Canada)
Join Zoom Meeting
https://us02web.zoom.us/j/87570224945?pwd=[REDACTED]
Meeting ID: 875 7022 4945
Passcode: [REDACTED]
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Join instructions
https://us02web.zoom.us/meetings/87570224945/invitations?signature=S_WDoTjNpCascf-au62B4ZdfiYos61KaWYKfhC4dj7w

Monthly Meeting: What is a Planet?
2026-02-26 19:30 - 21:30 | Greenbelt Community Center, 15 Crescent Road, Greenbelt, MD, 20770, United States
Indy Kochte of The Johns Hopkins Applied Physics Laboratory, who has worked on both the MESSENGER Mercury orbiter project and the New Horizons Pluto Flyby mission, will present a thought-provoking talk on what exactly defines a planet. In light of the IAU’s controversial demotion of Pluto, this should generate a spirited discussion

Our monthly meetings are usually held on the last Thursday of each month. Our speakers are drawn from all around the country, including experts from NASA, the Smithsonian, the National Radio Astronomy Observatory, and other scientific institutions. Our members also give presentations about subjects of interest to amateur astronomers.
The events are held at the Greenbelt Community Center. We encourage visitors to attend in person, although we will also broadcast the talk on Zoom. Come back a few days before the meeting to see how to join the Zoom meeting. We begin the meetings at 7:00 pm with informal conversation. The presentation begins at 7:30 pm.
The presentations are free and open to the public.
Per our insurance requirements, anyone under 18 years old must be accompanied by a parent or guardian.

Virtual Zoom meeting information:

greenbelt astro is inviting you to a scheduled Zoom meeting.

Topic: ASG February
Time: Feb 26, 2026 07:00 PM Eastern Time (US and Canada)
(7:00 – 7:30 is for set-up and fixing technical glitches; lecture starts at 7:30)
Join Zoom Meeting
https://us02web.zoom.us/j/82518299469?pwd=[REDACTED]

Meeting ID: 825 1829 9469
Passcode: [REDACTED]

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One tap mobile
+13017158592,,82518299469#,,,,*[REDACTED]# US (Washington DC)
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Join instructions
https://us02web.zoom.us/meetings/82518299469/invitations?signature=amBRhCRLimsXqcu7JhE-RTzu-JO-zReRouUON7r-BYw

Monthly Meeting
2026-03-26 19:30 - 21:30 | Greenbelt Community Center, 15 Crescent Road, Greenbelt, MD, 20770, United States
The Astronomical Society of Greenbelt will meet Thursday March 26 at 7:30 PM in room 114 of the Greenbelt Community Center. We will view the award-winning documentary “Saving the Dark.” This is especially relevant due to Greenbelt’s plans to convert current streetlights to LEDs.
The original presentation by Indy Kochte was moved up to February 26th.
Our monthly meetings are usually held on the last Thursday of each month. Our speakers are drawn from all around the country, including experts from NASA, the Smithsonian, the National Radio Astronomy Observatory, and other scientific institutions. Our members also give presentations about subjects of interest to amateur astronomers.
The events are held at the Greenbelt Community Center. We encourage visitors to attend in person, although we will also broadcast the talk on Zoom. Come back a few days before the meeting to see how to join the Zoom meeting. We begin the meetings at 7:00 pm with informal conversation. The presentation begins at 7:30 pm.
The presentations are free and open to the public.
Per our insurance requirements, anyone under 18 years old must be accompanied by a parent or guardian.
