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Free Astronomy Lecture: ExoComets | Presidio

Every 3rd Wednesday Through September 1st.
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Tuesday, December 19, 2017 - 7:00 pm to 9:30 pm | Cost: FREE
Observation Post at the Presidio | 211 Lincoln Boulevard, San Francisco, CA

Event Details

CANCELED: Free Astronomy Lecture | Castro

Once monthly, the SFAA hosts distinguished guest speakers who are leaders in the fields of astronomy, physics and related disciplines and they present to SFAA Members the latest developments from cutting-edge scientific programs.

Held in the Randall Museum Theater on the third Wednesday of every month, come early for coffee and a light snack at 7:30 PM followed by the general meeting at 7:45 PM. The lecture begins at 8:00 PM.

– Updated 6/26/19 – Event info last checked via website

ExoComets: Now You See Them, Now You Don’t

Featured Speaker: Barry Welsh, PhD, UC Berkeley, Space Sciences Laboratory

Minor bodies such as Kuiper Belt Objects, comets and asteroids constitute the rocky, icy debris left over from the planet-building phase of our solar system. The existence of reservoirs of small rocky bodies in orbit around young stellar systems is now well established. The initial protoplanetary disks that contain the reservoir of dust and gas required to form exoplanets are short-lived. The circumstellar debris disk observed around young stars of ages 10-50 Myr are continually replenished by collision and evaporation amongst planetesimals. The gravitational field can potentially enable large numbers of kilometer-sized icy bodies into trajectories directed toward the young central star.

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.

Cost: FREE
Categories: Geek Event, Lectures & Workshops, San Francisco
Address: 211 Lincoln Boulevard, San Francisco, CA