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Welcome to the Big Sky Astronomy Club

The Big Sky Astronomy Club is a group of dedicated amateur astronomers located in the beautiful Flathead Valley of Northwestern Montana.

Inside you will find information about our club, our monthly meetings, Star Parties and other events (both past and future), resources for observing plus

a poignant and special message from the late Dr. Carl Sagan.

We cordially invite you to

"Discover the Universe with The Big Sky Astronomy Club"

2017 Astronomy Day Event

April 29, 2017

Astronomy Day 2017 will be celebrated on April 29. The theme of this year's Spring Event is "Solar Eclipse" in recogition of this year's total solar eclipse, which occurs on August 17.

We are planning an exciting Astronomy Day event at Kalispell Center Mall on Saturday, April 29th.

The event will be located in the court at the west (Herberger's) end of the mall and will run from 10 A.M. to 4 P.M.

There will be many astronomy-related activities for visitors of all ages, including solar viewing through club members' scopes, a telescope display at our tables, and many theme-related, solar eclipse informational displays.

2017 Lone Pine Star Party

August 12, 2017 CANCELLED

Montana State Parks Logo

Unfortunately, due to the smokey sky conditions from the areas wildfires, the Star Party originally scheduled for Saturday August 12 has been cancelled.

2017 Logan Pass Star Parties

July & August 2017

National Park Service Logo

The Big Sky Astronomy Club, in conjunction with Glacier National Park, will once again host three star parties this summer under extremely dark skies at the Logan Pass Visitors' Center parking lot at the summit of Going-To-The-Sun-Road.

The events are extremely popular, with attendance at each event approaching four or five hundred visitors. The 2017 dates for these fun events will be July 14, Juyly 28 and August 25. These dates are also listed on our Meetings and Events Calendar. The events will be held on Fridays, with the following day (Saturday) reserved as a backup in case of inclement weather on the primary date. Tickets for each event will be available through Glacier National Park. Contact Park Headquarters (406-888-7800) for more information.

2017 Montana Starwatch

September 15 - 17, 2017.

Ruby Valley, Montana

The Big Sky Astronomy Club will host our sixth annual state-wide star party, Montana Starwatch this summer on private property near Twin Bridges, Montana. The property is owned by BSAC club member Joe Witherspoon. This will be the sixth year that the star party has been held at this wonderful, dark sky site.

We are planning two great presentations on the Friday and Saturday nights of the star party.

For more information, including a registration form for the event, please see the official Montana Starwatch website at:

2017 G.N.P. Summer Stargazing

Summer Season, 2017

See The Milky Way Poster

The Big Sky Astronomy Club will once again work with the management of Glacier National Park to put on a very popular Summer Stargazing Program at the Apgar Transit Center on the west side of the park and at St. Mary on the east side. Over the past five years, literally thousands of visitors from all over the world have had a chance to view sunspots on the face of our Sun during daylight hours and then, each evening, they have had an opportunity to view many of the interesting deep sky objects visible through telescopes of various types and sizes under the truly dark skies found in Glacier.

If you'd like more information on this program, please contact Park Headquartes at 406-888-7800 or visit our "Contact Us" page and send us a message.

BSAC Missoulian Article

November 14, 2013

Big Sky Astronomy Club member Joe Witherspoon and his personal observatory located outside of Twin Bridges, Montana, were featured in a very nice article published in the Missoulian newspaper on Thursday, November 14th, 2013.

The in-depth article described Joe's interest in astronomy, his personal observatory and what prompted his eventual move to Twin Bridges, having lived in the light pollution of Tacoma, Washington for many years.

The article can be read online at the Missoulian's website by clicking here.

BSAC Daily Inter Lake Article

September 4, 2013

The Big Sky Astronomy Club was featured in a very nice article published in Kalispell's Daily InterLake newspaper on Wednesday, September 4th, 2013.

The article described our history, our many outreach efforts along with our plans to build an observatory/education center and purchase a portable planetarium for use in our educational outreach.

The article can be read online at the Daily Inter Lake's website by clicking here.

Logan Pass Star Party 07-29-16