It’s time for the 38th seasonal sunset watch!

• When: Wednesday September 19, 6:55pm (so come at 6:30pm)
  • Actual sunset is supposed to be at 7:13pm, but we have noticed that the Sun sets about 10 minutes earlier than the USNO says, because of the horizon altitude.
  • The equinox moment is Saturday, September 22, 6:54pm 
• Where: Solstice Park – all the way up the hill from the tennis courts (or, if you’re not in Seattle, wherever you have a view of the western horizon!)
• Who: Everyone welcome, as usual. (Please do leash your dogs as we usually have a good number of people, kids, and other dogs around.)

Parent and Child at Sunset by Kazuhiko Teramoto, skyseeker

Come watch the sunset at Solstice Park in West Seattle. I’ll be there even if it is cloudy because sometimes the Sun peeks through just as it begins to set, but if it is driving rain or a thunderstorm I’m staying home with some tea!

If you’re interested – here’s the timing of various celestial events  from Seattle, courtesy of the U.S. Naval Observatory Astronomical Applications Department:

Sun and Moon Data for One Day

U.S. Naval Observatory
Astronomical Applications Department
Seattle, King County, WA (Longitude W122° 20′, Latitude N47° 38′)

Wednesday, September 19, 2018 Pacific Daylight Time
Sun
Begin civil twilight 6:21 a.m.
Sunrise 6:52 a.m.
Sun transit 1:03 p.m.
Sunset 7:13 p.m.
End civil twilight 7:44 p.m.
Moon
Moonset 1:15 a.m.
Moonrise 4:56 p.m.
Moon transit 9:31 p.m.
Moonset 2:10 a.m. on following day
Closest Primary Moon Phase: First Quarter on September 16, 2018 at 4:15 p.m. (local daylight time)

Phase of the Moon on September 19, 2018: Waxing Gibbous with 76% of the Moon’s visible disk illuminated.

Sun and Moon Data for One Day
U.S. Naval Observatory
Astronomical Applications Department
Seattle, King County, WA (Longitude W122° 20′, Latitude N47° 38′)

Saturday, September 22, 2018 Pacific Daylight Time
Sun
Begin civil twilight 6:25 a.m.
Sunrise 6:56 a.m.
Sun transit 1:02 p.m.
Sunset 7:07 p.m.
End civil twilight 7:37 p.m.
Moon
Moonset 4:11 a.m.
Moonrise 6:32 p.m.
Moon transit 11:49 p.m.
Moonset 5:14 a.m. on following day
Closest Primary Moon Phase: Full Moon on September 24, 2018 at 7:52 p.m. (local daylight time)

Phase of the Moon on September 22, 2018: Waxing Gibbous with 95% of the Moon’s visible disk.

This event is my part of the NASA’s Solar System Ambassador program, and thanks to West Seattle Blog for publicizing all of them!

Everyone is welcome, see you there!

~ A l i c e !

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