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Clear Sky Clock

"To bring together those who appreciate the night sky!"
The TriState Astronomers is a group of amateur astronomers from the area surrounding Hagerstown, MD. & Washington County. Since 1985, we enjoy sharing the ageless wonders of the night sky. About Us!


Club Officers



Public Outreach/Events



Skylights Podcast:
The Night Sky
Download sky map
Object of the Month
Constellation of the Month
Bright Comets
Messier Club
Lunar Lunatics Club
Magnitude Explained
Great American Eclipse

Satellite Flybys

What are Iridium Flares?
Your Sky

Top 10 Very Red Stars

TriState Astronomers

Promote Your Page Tooo

Coming Up! Star Party at The Antietam National Battlefield

Where:   Antietam Battlefield, Sharpsburg, MD
When:    April 20 and 21, sunset until 11 pm both nights. Weather permitting.
Show me a

This is one of our largest nighttime events of the year with over 600 guests each night at the Antietam National Battlefield Visitor Center in Sharpsburg, MD. From dusk until 11pm. Arrive when you want. Stay as long as you want (at least until 11 pm).

Next Club Meeting - April 18, 2018 - 7:00 pm. at the Brish Planetarium
6:30 – 7:00 p.m.

Doors open for informal discussion in the planetarium along with refreshments

7:00 – Presentation begins!

All regular meetings of the TriState Astronomers are free and open to the public. Bring a friend and share the excitement of amateur astronomy!

Other Events

The TriState Astronomers


Defending The Dark

Hubble Video
2 Decades
of Discovery

Light Pollution
Learn more about it.
More Info.

Astro Pictures
of the day. Daily
astro images.

Help us to further improve our
Outreach Educational Program!

Use Paypal to donate to the
TriState Astronomers.

We are a 501(c)(3) non-profit educational organization.

For NEW and RENEWING members. Use Paypal to pay
your annual dues.

Fill out membership form here.
You will then have a link to return here to complete payment.