Bob Moler's Ephemeris Blog

Thursday, September 30th.*  The sun will rise at 7:39.  It’ll be up for 11 hours and 45 minutes, setting at 7:24.   The moon, at last quarter today, will rise at 11:59 this evening.

Let’s look at the skies for the month of October.  The sun will still  moving south rapidly.  Daylight hours in the Interlochen/Traverse City area and will drop from 11 hours and 42 minutes tomorrow to 10 hours, 14 minutes at months end..  The altitude of the sun above the southern horizon at local noon will be 42 degrees tomorrow, and will descend to 31 degrees on Halloween, also in the Interlochen area.  The Straits area will have the sun a degree lower.  Local noon, when the sun is due south will be about 1:30 p.m. in Interlochen.  Sunrise times will increase all the way to 8:18 a.m. in Interlochen on the 31st.  Sunset times will decrease from 7:23 p.m. tomorrow to 6:32 when the trick or treaters haunt our neighborhoods.

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