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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<meta name="author" content="Ron Kane">
<meta name="copyright" content="Tri-Valley Stargazers, 2023">
<meta name="description" content="The Tri-Valley Stargazers home page">
<meta name="keywords" content="Tri-Valley, Stargazers, astronomy">
<title>Tri-Valley Stargazers, Livermore CA</title>
<link href="tvs.css" rel="stylesheet" type="text/css">
<script src="tvs.js" type="text/javascript"></script>
<script type="text/javascript">
<!--
lastUpdateDate = "February 17, 2025";
//-->
</script>
<script type="text/javascript">
<!--
// Use the following script to select which "optional" elements will be displayed.
// Comment out the lines that you don't need, but don't delete them please!
function setupOptionalCode() {
//showOptional("opt_announce"); // Optional announcement at the head of the page
showOptional("opt_talk");
//showOptional("opt_bbq");
//showOptional("opt_potluck");
// showOptional("opt_other"); // Regular meetings that don't fit into previous categories
//showOptional("opt_h2o");
//showOptional("opt_tesla"); // Club star party at Tesla Vintners
}
//-->
</script>
<!-- The id for the button that needs to be underlined. -->
<style type='text/css'>#appleNav li a#m_home { text-decoration: underline;}</style>
</head>
<body onload="setupOptionalCode()">
<!--#include virtual="free_find.shtml" -->
<!--#include virtual="leader.shtml" -->
<div class="intro">
The Tri-Valley Stargazers Astronomy Club, Livermore CA, welcomes you. There is a lot
of information here on the many activities of our club.
Learn why you should join the club to get the most out of your
amateur astronomy hobby in the east San Francisco Bay Area.
<br><br>
The Tri-Valley Stargazers Privacy Policy is available <a href="https://trivalleystargazers.org/TVS Privacy Policy (September 2022).pdf "_blank">here</a>.
</div>
<div style="border-style: solid; background-color:#003354; color:white; padding: 12px;">
Please read the latest about our Health rules:
<a href="covid3.shtml" title="Click me to read the rules">
<button style="margin-left: 10px; border-radius: 6px; background-color: white; color: black;">Rules</button>
</a>
</div>
<br>
<img src="images/rulehoriz.gif" alt="rule" width="294" height="10"><br>
<div class="optional" id="opt_announce">
<div class="announcement">
<img src="images/announcement1.png" alt="nova" style="position:absolute; left:-44px; top:-32px; z-index:-1;">
<img src="images/announcement2.png" alt="new" style="position:absolute; left:-6px; top:-6px;">
<br>
<div class="insetTitle" style="color:#A8311B;">Board elections are coming up</div>
<br>
We will soon be electing new members for the board. Please nominate candidates to replace old members
who will be retiring this year.<br><br>
</div>
</div>
<table width="500" border="0" cellpadding="2" cellspacing="4">
<tbody>
<tr valign="top" align="left">
<td valign="top" width="250" align="left">
<h3 class="subtitle">Next Public Meeting</h3>
<div class="optional" id="opt_talk">
<br> Friday February 21, 2025
<br>
<br> <b>Citizen Science, Variable Stars, and the AAVSO</b> <br><br>
Presenter: Dr. Brian Kloppenborg
<br><br>
Meeting starts at 7:30 p.m.<br>
<br>This will be a hybrid meeting. Location details below.
<br><br>
Unitarian Universalist Church<br>
1893 N. Vasco Rd., Livermore<br><br>
</div>
<div class="optional" id="opt_bbq">
<h3 class="subtitle">Summer Barbecue</h3>
<img src="images/bbq.jpg" alt="saturn grill" width="170" height="170"><br>
Saturday, June 22, 2024<br>
Set up at 4.00 p.m.<br>
Dinner starts at 5:00 p.m.<br><br>
Unitarian Universalist Church<br>
1893 N. Vasco Rd., Livermore<br><br>
</div>
<div class="optional" id="opt_potluck">
Winter Solstice Potluck Dinner
<img src="images/xmas.jpg" alt="saturn garland" width="170" height="49"><br>
Friday, December 20, 2024<br>
Set up at 6:30 p.m.<br>
Dinner starts at 7:00 p.m.<br><br>
Unitarian Universalist Church<br>
1893 N. Vasco Rd., Livermore<br><br>
</div>
<div class="optional" id="opt_other">
Outing to Del Valle<br>
Friday, July 19th at 7:30 p.m.<br>
Details below.
</div>
</td>
<td valign="top" width="295" align="left">
<h3 class="subtitle">Next Board Meeting</h3>
<br>
Monday, January 20, 2025, 7:30 p.m. <br><br>
Board meetings are usually held using video conferencing. Members are always welcome at board meetings.
</td>
</tr>
</tbody>
</table>
<img src="images/rulehoriz.gif" alt="rule" width="294" height="10">
<div align="left">
<h2 class="subtitle">The Latest News & Upcoming Events</h2>
<br>
<!--
<h3 class="subtitle">Barcroft High Altitude Star Party</h3>
<br>
Reservations for the Eastbay Astronomical Societys Barcroft High-Altitude Star Party are now open to members of the EAS, the Tri-Valley Stargazers, and the Mount Diablo Astronomical Society clubs. This years event will be held from Sunday August 13th through noon on Saturday August 19th (with departure by noon on Saturday). Thats six nights.
<br><br>
Before sending payments for reservations ($90 per night, per person), even if youve been there before, please contact Don Saito FIRST (barcroft@eastbayastro.org) to ensure the dates you wish to attend are available. You will also be asked to read the Barcroft Writeup, as it provides the information youll need to have a safe, comfortable stay, and what is expected of guests to this University of California research facility.
<br><br>
Please visit: <a href="https://eastbayastro.org/events/" target="_blank">East Bay Astronomical Society - Barcroft High Altitude Star Party</a>
<br>
-->
<h3 class="subtitle">Important Annoucement - The IRS has revoked our 501(c)(3) status due to an error in our filings for the years
2020-2022. We're addressing this issue and are working on our reinstatment retroactive to 2022. We anticipate success but will keep you informed. But for the moment we are not eligible for charitable donations. </h3>
<br><br>
<!--<h3 class="subtitle">Rob Hawley's - "How to Photograph an Eclipse" is in the ABOUT - Past Speakers Tab </h3>
<br><br> -->
<div class="optional" id="opt_talk_details">
<h3 class="subtitle">February 2025 Member Meeting Presentation</h3>
<br><br>
This meeting will be live at the Unitarian church and will also be available using the video conference utility
<a href="https://zoom.us/" title="Learn about Zoom" target="_blank">Zoom</a>.
The meeting link will be emailed to members. For non-members
if you would like to join the meeting, please send an email to
<script type="text/javascript">
contact("president", "trivalleystargazers.org", "the club president");
</script>
asking for the meeting link and telling us a bit about your areas of interest
in astronomy.<br><br>
<b> Citizen Science, Variable Stars, and the AAVSO </b>
<br>
Dr. Brian Kloppenborg
<br><br>
Abstract:
"Citizen Science, Variable Stars, and the AAVSO" introduces the exciting world of citizen
science in astronomy, focusing on how you can actively contribute to scientific discovery. The
talk covers engaging citizen science projects, such as those on Zooniverse, and collaborations
like JunoCAM, IOTA, and SAS. It includes a detailed look at variable stars, featuring examples
like SS Cyg, T CrB, and Cepheid variables, and highlights recent discoveries, such as the Great
Dimming of Betelgeuse and the newly discovered Iota Del. Finally, the talk introduces the
AAVSO, its resources, and how you can start observing variable stars either visually or digitally.
Bio: Dr. Brian Kloppenborg is an astrophysicist and entrepreneur currently serving as the Executive
Director of the AAVSO. He earned a Ph.D. in Physics with an astrophysics specialization from
the University of Denver and a B.A. in Physics from Hastings College. Before joining the
AAVSO, Dr. Kloppenborg worked as a Research Scientist at the Georgia Tech Research
Institute, where he led multidisciplinary teams as a subject matter expert, lead engineer, product
owner, and project director.
Dr. Kloppenborg’s research focuses on combining photometry, spectroscopy, astrometry, and
long-baseline optical interferometry to deepen our understanding of eclipsing binaries, novae,
and young stellar objects. His work has been published in esteemed journals, including Nature,
The Astrophysical Journal, and the Journal of the AAVSO.
Throughout his career, Dr. Kloppenborg has been dedicated to fostering collaboration between
amateur and professional astronomers, advancing scientific discovery, and promoting
educational outreach in astronomy.
<br><br>
</div>
<h3 class="subtitle">Upcoming star parties</h3>
The following star parties are coming soon:<br>
<ul>
<!-- For future reference:
<li>Tuesday mm/dd/yy, Outreach party at the Muslim Community Center, 5724 W Las Positas Blvd., Pleasanton; 7:45</li>
<li>Saturday mm/dd/yy, TVS club party at Tesla Vintners, 5143 Tesla Road, Livermore; 8:00</li>
<li>Monday mm/dd/yy, Outreach party at the Taylor Family Foundation Camp, 5555 Arroyo Road, Livermore; 8:00</li>
<li>Saturday mm/dd/yy, Outreach party at Del Valle Arroyo staging area; 8:15</li>
<li>Sunday mm/dd/yy, Outreach party (Perseids) at Del Valle ridge near park entrance; 8:15</li>
-->
<li>Thursday, 02/20/24, School star party at Arroyo Seco Elementary School, 5280 Irene Way, Livermore, in conjunction with their family science night. 5:00 pm</li>
<li>Thursday, 02/27/24, Sunset Elementary School, 1671 Frankfurt Way, Livermore, School star party at Family Science Night. Tentative start time 5.00 pm</li>
<li>Thursday, 02/28/24, Star party at Muslim Community Center in Pleasanton, 5724 W Las Positas, Pleasanton. Set up starts 5:00.</li>
<li>Thursday, 03/13/24, School star party at Kolb Elementary School, 3150 Palermo Way, Dublin. Set up 6:30, start observing 7:30. </li>
</ul>
For a complete and up-to-date calendar of upcoming events, visit our
<a href="https://groups.io/g/trivalleystargazers/calendar" title="See our calendar" target="_blank">groups.io</a>
calendar.<br><br>
Please contact
<script type="text/javascript">
<!--
contact("coordinator", "trivalleystargazers.org", "Eric Dueltgen");
-->
</script>
for further information.<br><br>
<div class="optional" id="opt_bbq_details">
<h3 class="subtitle">June's meeting</h3>
<!-- Next year be sure to invite family members, esp. Sue! -->
Our June meeting will be our annual Summer BBQ. Plan on working up an appetite by
helping to set-up and get the charcoal going at about 5:30pm. We will start eating
around 6:00pm. <br><br>
The club will provide hamburgers, hotdogs and vegetarian black bean burgers,
along with a variety of toppings. If you wish, provide side dishes for your family, but not
to be shared with members because of COVID.<br><br>
<!-- For future meal, K-O should be Dessert. Plan to rotate down each meal! Coordinate BBQ and Potluck! -->
<!--
<ul>
<li>A-D Macaroni, Potato, Green or Fruit Salad</li>
<li>E-J Vegetable or Beans</li>
<li>K-O Appetizer</li>
<li>P-Z Dessert</li>
</ul>
-->
<br>
</div>
<div class="optional" id="opt_potluck_details">
<h3 class="subtitle">December's meeting</h3>
This month is our Holiday dinner. We'll be opening the doors at 6:30 to set up the tables
and chairs, and then the feast will begin at 7:00 PM. TVS will provide the drinks and
paper/plasticware. In addition we will provide the main course for this month's
holiday celebration, possibly turkey and/or tri-tip. Members are asked to bring a dish to share,
and of course bring family and friends to share in the festivities. Based on the first letter of your
last name members are asked to bring a dish to share:
<ul>
<!-- For future meal, K-O should be Dessert. Plan to rotate down each meal! Coordinate BBQ and Potluck! -->
<li>A-D Macaroni, Potato, Green or Fruit Salad</li>
<li>E-J Vegetable or Beans</li>
<li>K-O Appetizer</li>
<li>P-Z Dessert</li>
</ul>
<br>
</div>
<div class="optional" id="opt_h2o">
<h3 class="subtitle">H2O Open House</h3>
Our next open house is September 28, 2024 for the club's dark sky site,
<a href="h2o.shtml" title="Learn more about the TVS's Hidden Hill Observatory">Hidden Hill Observatory</a>,
aka H2O. <br><br>
Anyone can come to our open houses, not just club members; but you cannot go
there without an escort. We will meet at the corner of Mines and Tesla Roads
at 5:00 PM, then caravan to the site on a drive that takes about 50 minutes.
The admission is $3/car; please bring the exact amount. There is no gas on
the way, so be sure to gas up before leaving. The site is essentially in the
wilderness, so there is no electricity and water, and there are only a couple
of pit toilets. Cell-phone reception is iffy at best. While there is a
picnic table there, you really should bring your own chair. If you need to
see what you are doing, bring a red LED flashlight, not a white-light
flashlight. And use masking tape over your car door and interior lights, or
pull the fuse. If you don't have a scope, you can always find someone who is
willing to let you look through theirs. And don't forget to bring your
binoculars. Expect to stay until about midnight and get back to Livermore at
around 1:00 AM.<br><br>
</div>
<div class="optional" id="opt_tesla">
<h3 class="subtitle">Member star parties at Tesla Vineyard</h3>
<style>
ul {
margin-left: 27px;
}
</style>
<ul>
<li>4/27/24</li>
<li>6/29/24</li>
<li>8/31/24</li>
<li>10/26/24</li>
</ul>
Tesla Vintner star parties are generally open to club members and their guests. The star parties will run from 6:00 PM
until midnight. Tesla Vintners is in Livermore near the intersection of Tesla and Mines. For
those new to the site, please use the unmarked west entrance (closest to Mines) to enter the
winery grounds.<br><br>
</div>
<br><br>
<h3 class="subtitle">We continue to rebuild the Hidden Hill Observatory</h3>
Our latest change is to add a shed for storing tools and portable telescopes.
Click on this image to see more pictures of our progress:<br><br>
<a href="images/fire/album/index.html" title="Fire images">
<img src="images/temp/shed_IMG_2955_resized.jpg" width="181" alt="Shed"
title="Click to see our recontruction progress" style="floatxxx:right;">
</a><br><br>
<h3 class="subtitle">TVS Crystal Wine Glasses For Sale</h3>
<img src="images/wine_glass.jpg" alt="wine glass" width="200" height="243" style="float:right; margin: 0 20px 10px 10px;">
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
<script type="text/javascript">
<!-- contact("secretary", "trivalleystargazers.org", "Jill Evanko"); -->
</script>
who got these wonderful glasses.<br><br>
<h3 class="subtitle">TVS Logo Wear</h3>
You may have seen some TVS members wearing shirts, caps 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
<a title="Land's End Corporate Sales" href="http://ocs.landsend.com/corpsales" target="_blank">
<b>Land's End's Corporate Sales</b>
</a>
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). Before you order a cap, you
might want to check with Roland, who has ordered several to get a discount price.<br><br>
<!-- OBSOLETE:
TVS has also set up shop at
<a title="Cafepress" href="http://www.cafepress.com/tvstargazers" target="_blank"><b>Cafepress</b></a>
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.<br><br>
<br><br>
-->
</div>
<!--#include virtual="trailer.shtml" -->
</body>
</html>