SAS Activities


Moderator: Mary Anderson Mary  Anderson

2017 Total Solar Eclipse


On August 21st, 2017, North America will witness one of the greatest eclipses in history. The path of totality will sweep across the US from coast to coast. Every state, including Hawaii and Alaska, will experience at least a partial eclipse. Those lucky enough to be in the 70 mile wide path of totality will experience up to 2 minutes and 40 seconds of darkness while the moon blocks the light of the sun.

Seattle, WA sits near the path of totality and will experience a 92% partial eclipse.  As one of the largest astronomy clubs in the region, the Seattle Astronomical Society is bursting with energy to share the excitement of this phenomenon. This page was created as a resource for safe viewing.

Artwork courtesy of Dr. Tyler Nordgren. This and many other posters may be purchased at


Moderator: Matt Dahl Matt Dahl



This group explores all types of digital cameras and astrophotography, including capturing star trails, starscapes, constellations, the moon, planets, and deep sky objects.

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Astrophotography Contest


Each quarter the Seattle Astronomical Society highlights an especially wonderful photo submitted by one of our members.

Each photo is displayed on the SAS Facebook page, where votes are submitted by simply "Like"ing the photo. Voting is open to both members and the public. The entry with the most votes/likes by the deadline will be our Facebook and Twitter cover photos for the whole season, as well as permanently memorialized here on the SAS webpage. Send any questions (or your entry - preferably in .jpg format) to

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Every year SAS holds its annual banquet as a means for members to come together and celebrate the past year of activities.  We also have a noted contributor to astronomy give us a presentation.  We hope you can join us in January for a bit of fun and sharing.


Moderator: Rayna C.T. Bauer Rayna C.T. Bauer

General Meetings

SAS holds monthly meetings on the UW campus.


Moderator: Russell Coad Russell  Coad

Goldendale Star Party

Starry night

As is becoming an SAS tradition, we are having two Goldendale Star Parties in 2020: May 16 - May 21 and September 16 - September 20.

Brooks Memorial State Park is an incredibly dark site which offers an excellent opportunity for those of you who were unable to attend the recent Table Mountain Star Party or others in the area. If you've never visited a dark sky site for a star party, you'll be amazed.

Photo of Milky Way over Goldendale Park by Mark De Regt


Moderator: Mike Dole Mike  Dole

New Members Orientation


New member orientation meetings are held two or three times a year to welcome new and prospective members to the club. This is an opportunity to meet other society members, to learn about the basics of visual observing and selecting equipment, and to find out more about the activities of the Seattle Astronomical Society.

No signup is necessary. If you have questions, please email Mike Dole at


Moderator: David W. Ingram David W. Ingram


ORBIT stands for OutReach Builders Team. We are the outreach arm of the Seattle Astronomical Society.

The official mission of the SAS includes outreach as one of the main efforts of the organization. However, we recognize that not all astronomers are equally interested in outreach, and the ORBIT group was created so that we will communicate outreach-related matters only to those who are interested.


Moderator: David W. Ingram David W. Ingram

Timber Outdoor Music Fest

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Timber Outdoor Music Fest will start at 11:30pm. Guests can join astronomers from the Seattle Astronomical Society and astronomers  from the University of Washington for a star party! Guests will be able to learn about the cosmos, gaze at distant planets and galaxies, and celebrate the outdoors in the grandest way. Timber’s stargazing activity will take place in the North Meadow on the west side of the walking bridge.
Admission is free for participating astronomers.  

Overnight camping at the observing field is strongly suggested.
Visit the Timber website at

Upcoming Seattle Astronomical Society Event:
Saturday, 7/14/2018 10 PM - 2 AM
Timber Outdoor Music Fest Star Party
Tolt-MacDonald Park and Campground
31020 NE 40th Street
Carnation, WA 98014

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Visual Observing

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Visual Observation of the Night Sky.

One of the primary activities of amateur astronomers is visual observation of the night sky and the vast assortment of objects it contains.  One can participate in this activity using the unaided eye or by using telescopes and binoculars of varying sizes and designs.

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SAS Workshops are held periodically at Theodore Jacobsen Observatory (TJO) on the UW Campus. Workshops are designed to help you become more acquainted with amateur astronomy and help you meet other SAS members. Free parking is available on campus after 12:00 noon on weekends but the parking lots near TJO may be crowded. A good alternative is lot N16 on the east side of campus below Padelford Hall. Refreshments will be set up by 30 minutes before the meeting, so arrive early, have a cookie, and get to know us.