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.
See Ken Sperber's
Arp Peculiar Galaxy Observing Guide!
Ken Sperber has contributed a guide for observing objects in Halton Arp's peculiar galaxy catalog. For
more information, please visit the member contributions section of our
Next Public Meeting
Speaker: John Martin
Galaxy Morphology and Composition
Friday, October 17, 2014
Doors open at 7:00 p.m.
Lecture at 7:30 p.m.
Show and Tell follows
Unitarian Universalist Church
1893 N. Vasco Rd., Livermore
Next Board Meeting
Monday, October 20, 2014, 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
Through presentation of Edwin Hubble's galaxy classification scheme, John will
talk about galaxy morphology, composition, and evolution. John also plans to
investigate the issue of why the various types of galaxies look like they do,
including discussing recent research and theories. He will also tracing how
some ideas about galaxies have changed over the past seventy-or-so years. He
will also point out how some galaxies that have led righteous lives have
halos, whereas others that have gone over to the Dark Side are full of Dark
Matter (hey, a little humor never hurts!). John will bring along his copy of
Arp's "Atlas of Peculiar Galaxies" in its original 1966 format (published as a
supplement to the Astrophysical Journal), as well as his copy of the Allan
Sandage's "Hubble Atlas of Galaxies." John is hoping for not just questions,
but also input from the members as regards to the various theories of galaxy
morphology and evolution.
John Martin, a retired attorney, has had a lifelong fascination with and
interest in astronomy. As a child, he attended meetings with the
St. Petersburg Astronomy Club, and has since belonged to a variety of
astronomy organizations in California, including the High Desert Astronomical
Society in San Bernardino County (where he served a Program Director and
Vice-President), and the Astronomical Society of the Pacific. Since early
youth, Mr. Martin has tenaciously pursued everything Galaxy, and he closely
follows the ever-changing theories and improved understanding regarding galaxy
formation, composition, change, and demise. To further his knowledge of
galaxies, John has read voraciously, including Astrophysical Journal articles
and papers from International Astronomical Society galaxy symposia, and he has
also taken courses in Physics and Quantum Physics.
TVS has back issues of S&T and Astronomy magazines freely available. If you are interested in being a recipient of
these valuable resources of astronomical history, please make your interest known at a forthcoming club meeting. First come,
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
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
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.