Bob Moler's Ephemeris Blog: Ephemeris for Friday, September 30th. The Sun will rise at 7:40. It’ll be up for 11 hours and 44 minutes, setting at 7:24. The Moon is new today, and won’t be visible. Let’s look at the skies for the month of October. The sun will still be moving south rapidly. Daylight hours in the Interlochen/Traverse City area and will drop from 11 hours and 41 minutes tomorrow to 10 hours, 12 minutes at month’s 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. Sunrise times will increase from 7:41 tomorrow all the way to 8:20 a.m. in Interlochen and Traverse City on the 31st. Sunset times will decrease from 7:22 p.m. tomorrow to 6:32 when the trick-or-treaters haunt our neighborhoods on Halloween. Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location. Addendum October Star Chart Star Chart for October 2016. Created using my LookingUp program. To enlarge in ...