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Eastbay Astronomical Society
 

To increase our own knowledge and appreciation of space, to promote the space sciences to the public and to support Chabot Space and Science Center.

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Eastbay Astronomical Society

The Eastbay Astronomical Society serves Bay Area residents and astronomy enthusiasts with events, classes, and Oakland’s premier views of the universe. Experience the wonder of gazing into infinity with the friendly experts at EAS by attending our events and joining the club!

 

 

News & Events

Events are open to members and the general public. Most of our events happen at the Chabot Space and Science Center.

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Membership

Membership benefits include monthly meetings with featured guest speakers, Members-Only viewing nights, and more!

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Donate

EAS is an entirely volunteer run 501(c)3 NPO. Support our work by donating to our general fund!

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Next Special Event

AIC - Advanced Imaging Conference November 15th - November 17th

advancedimagingconference.com

Next General Meeting

Our next general meeting will be on Saturday November 16th at 7:30pm at the Chabot Space and Science Center's Galileo Room.

Our Speaker is Dr. Eric Nielsen, Kavli Institute of Particle Astrophysics and Cosmology, Stanford University

What are Brown Dwarfs?

Giant planets can be as large as 13 times the mass of Jupiter, while the lowest mass stars are about 80 times the mass of Jupiter. In between are objects called "brown dwarfs", too massive to be called planets, but not massive enough to burn hydrogen and shine like stars. Since 1994, a few thousand brown dwarfs have been observed in close to us in the galaxy. But what are they? Are they more like half-pint cousins of stars, or more like overgrown planets? This lecture will explain how we observe and study brown dwarfs, and what we have learned about them. It will describe clues to their nature from their composition and their evolution over time, and the insights these new objects give us into how stars and planets are born.

Sign up for email event updates by registering with Night Sky Network.

Astronomy Fun Fact

On Monday, November 11, Mercury will transit the Sun for the first time since 2016. The transit or passage of a planet across the face of the Sun is a relatively rare occurrence. As seen from Earth, only transits of Mercury and Venus are possible. There are approximately 13 transits of Mercury each century. In comparison, transits of Venus occur in pairs with more than a century separating each pair.

Join Us

The mission of the Eastbay Astronomical Society is to increase the public's knowledge of astronomy and the space sciences, introduce the infinite wonder and intrigue of the night sky to everyone, and support the Chabot Space & Science Center.

Amateur astronomers of every age and level of experience are welcome at our events. Join us here!

Chabot Space and Science Center

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