Bob Moler's Ephemeris Blog

September 17:  This is Ephemeris for Friday, September 17th.*  The sun will rise at 7:23.  It’ll be up for 12 hours and 25 minutes, setting at 7:49.   The moon, 2 days past first quarter, will set at 2:41 tomorrow morning.

Tonight the Grand Traverse Astronomical Society will host a public viewing night at Northwestern Michigan College’s Rogers Observatory starting at 9 p.m.  On tap will be the moon, and the planets Jupiter and Uranus which will appear near Jupiter.  The observatory is located south of Traverse City, on Birmley Road between Garfield and Keystone roads.  Tomorrow, being International Observe the Moon Night, the society will bring its and its members telescopes to the Clinch Park Marina to view the moon.  That is, only if it’s clear.  The start time for that event will be 8 p.m.  The waxing moon is leading up to the Harvest Moon which will occur only a bit more than 6 hours after the official beginning of autumn.

*Times are for the Grand Traverse Area of Northern Michigan, USA.