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Beaver Creek 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
2017 Moon Calendar

Object of the Month
Constellation of the Month
Bright Comets
Messier Club
Lunar Lunatics Club
Magnitude Explained
Track Jupiter's Moons

Satellite Flybys

What are Iridium Flares?
Your Sky

Top 10 Very Red Stars

TriState Astronomers

Promote Your Page Tooo

Gravitational Waves Program at The Renfrew Institute / Renfrew Museum and Park

Thursday, February 2 at 7 PM - 10 PM
1010 East Main Street, Waynesboro, PA

The ever-popular Dr. Larry Marschall returns with another exciting discussion on astronomy. Find out about Gravitational Waves—predicted by Albert Einstein 100 years ago and just recently discovered!
Night Sky observing following the discussion with the TSA, weather permitting.

Program by Elizabeth Warner (UMD)

Next Club Meeting - January 18, 2017 - 7:00 pm.
The TriState Astronomers will meet on Wednesday, 18 January 2017 at the Brish Planetarium. This meeting will feature a presentation by Elizabeth Warner (UMD) on Citizen Science: Observing Asteroid Occultations.

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.