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: Dr. Julia Vogel
Unraveling the High-Energy Universe with NuSTAR and Peering at the "Dark Side" of the Cosmos
Friday, April 17, 2015
Doors open at 7:00 p.m.
Show & Tell starts at 7:30 pm
Unitarian Universalist Church
1893 N. Vasco Rd., Livermore
Next Board Meeting
Monday, April 20, 2015, 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
The Nuclear Spectroscopic Telescope Array (NuSTAR) is a NASA
small explorer mission and was launched in June 2012. Its primary
mission goal is to bring the high-energy Universe into focus. It studies
the cosmos at its extremes by observing exploding stars, hidden
black holes and other exotic objects in an entirely new light. In
addition, NuSTAR is also looking at a closer and more familiar star
(our Sun) to understand its high-energy emission better and search for
dark matter particles, which are expected to make up about 25% of
all matter in the universe while "normal" matter as we know it
contributes a mere 5%. Together with ground-based experiments,
such as the CERN Axion Solar Telescope (CAST), NuSTAR will shed
some light on the "dark side" of the Universe.
Dr. Julia Vogel is a staff scientist in the X-ray Science and
Technology group of the Physics Department at Lawrence Livermore
National Laboratory (LLNL). She works on solar axion dark matter
searches (CAST, IAXO) and hard x-ray astronomy using focusing
multilayer-coated x-ray optics (NuSTAR). She received her Ph.D.
from the Albert-Ludwigs University of Freiburg, Germany, in 2009 in
experimental astroparticle physics. Her primary research
interests include the search for dark matter using novel, low-background
detectors in combination with X-ray optics (CAST, IAXO
experiments). Currently her work focuses on the application of
advanced multilayer techniques in astrophysics. As a member of the
NuSTAR instrument and science team, Julia studies neutron stars with
very high magnetic fields (called magnetars) using this state-of-the-art
NASA Small Explorer mission. NuSTAR is also scheduled for
solar observations and Julia will work on using these data to search
for axions combining her astroparticle research work with x-ray
astronomy instrumentation and analysis.
Upcoming star parties
We have tentatively planned the following star parties:
- Saturday, April 18, Members-only party at Tesla Vintners
- Thursday, April 23, Project ASTRO at Mendenhall Middle School
- Saturday, May 9, H2O Open House
- Friday, July 17 and Saturday, July 18, Yosemite Star Party
- Saturday, August 8, H2O Open House
for further information.
What's Up for February
Roland gave February's What's Up
presentation. You can see it
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.