Eastbay Astronomical Society

EAS General Meeting & Talk

Saturday, June 21, 2025

Event

The Eastbay Astronomical Society's General Meeting will be held at the Chabot Space and Science Center Classroom 4 (the Room formerly known as Copernicus). Please enter through the side gate along the back road of the facility. This is a hybrid meeting. You can also view the meeting on EAS's Facebook site and by Zoom.

Our guest speaker for the evening is Tim Thompson, Mount Wilson Observatory

TITLE: Discovering the Sun

It has taken people thousands of years to figure out what the sun actually is, more or less. We finally have the basics figured out, but a lot of detailed questions remain unanswered. Tim will review the basic physics of the sun, and the sun-Earth connection. Along the way he will correct a few misconceptions about the sun, which are wrong, despite now being “common knowledge”.

About the Speaker

Tim Thompson received his B.S. (1978) & M.S. (1985) degrees in physics from California State University at Los Angeles. He worked at the Jet Propulsion Laboratory (1981-2008) on several projects in both astronomy, and Earth science. A volunteer at Mount Wilson Observatory (MWO) since 1981, he is now a member of the Board of Trustees for the Mount Wilson Institute, and is Science Director for MWO. Tim is 12-time past President of the Los Angeles Astronomical Society, and has been an astronomer at Garvey Ranch Observatory since 1975. He is also currently President of the consortium of Western Amateur Astronomers (WAA), and a recipient of their 2015 G. Bruce Blair Medal.

EAS Members will get a private Zoom invitation by Email

Date: Saturday, June 21, 2025

Time: 7:30 p.m. - 9:30 p.m. Pacific

Location: Chabot Space & Science Center
10000 Skyline Blvd
Oakland, CA 94619

Information for Visitors

Location Details

Chabot Space & Science Center
Atop the Oakland hills Lat: N37.82 Lon: W122.18
10000 Skyline Blvd
Oakland, CA 94619
(click to get directions)
check weather forecast
check clear sky chart
Chabot Space & Science Center

Notes:
Driving Directions
From South of Oakland:
1. Take HWY I-580 west (north) toward OAKLAND.
2. Merge onto HWY CA-13 N toward BERKELEY. approx 0.9 miles.
3. Take the CARSON ST exit toward REDWOOD RD. approx 0.1 miles
4. The exit ramp becomes MOUNTAIN BLVD. approx 0.25 miles.
5. Turn RIGHT onto REDWOOD RD. approx 1.0 miles.
6. Turn LEFT onto SKYLINE BLVD. approx 0.5 miles.
7. Turn RIGHT onto SKYLINE BLVD. approx 0.75 miles
8. Look for the large, concrete sign at the Chabot Space & Science Center entrance driveway, which winds steeply up to the right.

From North of Oakland:
1. Take HWY I-580 east (south) toward OAKLAND.
2. Take exit ramp on right to HWY CA-24 east approx 4.75 miles.
3. Take exit ramp on right to HWY CA-13 S. toward San Leandro approx 3.3 miles
4. Take exit for JOAQUIN MILLER RD./LINCOLN AVE.
5. Turn slight left onto MONTEREY BLVD. approx 0.1 miles
6. Turn left onto LINCOLN AVE. approx 0.1 miles
7. Lincoln Ave. turns into JOAQUIN MILLER RD. approx 1.1 miles
8. Turn left at stoplight to SKYLINE BLVD. approx .7 miles
9. Look for the large, concrete sign at the Chabot Space & Science Center entrance driveway, which winds steeply up to the right.