Welcome to the Tri-Valley Stargazers Astronomy Club's web site. There is a lot of information here on the many activities of the Tri-Valley Stargazers (TVS). Learn why you should join the club to get the most out of your amateur astronomy hobby in the east San Francisco Bay Area.


Next Public Meeting

Speaker: Don Machholz
Charles Messier, and Planning a Messier Marathon

Friday, April 21, 2017
Doors open at 7:00 p.m.
Show & Tell starts at 7:30 pm
Talk follows

Unitarian Universalist Church
1893 N. Vasco Rd., Livermore

Next Board Meeting

Monday, April 24, 2017, 7:30 p.m.
Round Table Pizza
1024 E. Stanley Blvd, Livermore

Members are always welcome at board meetings. Pizza is optional.

The Latest News & Upcoming Events

April's meeting

Famed comet discoverer, and lifetime TVS member, Don Machholz will give a presentation on Charles Messier, his comets, the missing Messier Objects, the idea behind the Marathon, and how to run a Messier Marathon. Then, in the course of about 15 minutes, we will go through the Marathon, object by object, all 110!

In 1965 Don Machholz received his first telescope for his 13th birthday. In 1968-69 he found all of the Messier Objects using a 6-inch Criterion Dynascope. In 1978 he helped to develop the Messier Marathon, and he has conducted more than 50 in the past 39 years. Since 2002 he has been finding all of the Messier objects from memory, using no charts or setting circles. Don has written a book covering the Messier Marathon, based on his years of helping to develop and run Messier Marathons. It was revised and published in 2002 by Cambridge University Press. Since 1975 he has turned his attention to visual comet hunting.

Upcoming star parties

The following star parties hsvr been scheduled: Please contact for further information.

The H2O Open Houses will be open to all club members and the public. The Tesla Winery club Parties will be open to club members and their guests. Start and end times for the parties will be announced later, but we usually plan to arrive at the observing site about 30 minutes before sunset and wrap up around midnight. Each Tesla star party will have a theme, including topics like a tour of the constellations, planets and asteroids, or binocular highlights.

TVS Crystal Wine Glasses For Sale

wine glass TVS is offering elegant crystal wine glasses for sale to club members. You don't have to drink wine to enjoy the beautiful TVS logo-etched stemware. Use them for your favorite beverage, or they can be used as a beautiful container for small plants. They are the perfect gifts for loved ones or friends. Look for them at club meetings, where they will be sold for $10/each. Don't drink alone, buy two! Support TVS. Thanks to who got these wonderful glasses.

TVS Logo Wear

You may have seen some TVS members wearing shirts and jackets embroidered with the TVS logo. If you are interested in obtaining an embroidered logo item, you can do so by ordering whatever you would like through Land's End's Corporate Sales section and specifying TVS logo #0118948. You will need to set up an account, which will ask for the logo number and the TVS customer number (3452021).

TVS has also set up shop at Cafepress for members to buy non-embroidered TVS logo wear. You can have the TVS logo put on t-shirts, mugs, buttons, hats, coasters, etc. You buy through Cafepress, and Cafepress sends TVS a portion of the proceeds. Visit the web site to see all the TVS logo possibilities.