Bob Moler's Ephemeris Blog

Monday, January 31st.  The sun will rise at 8:02.  It’ll be up for 9 hours and 46 minutes, setting at 5:49.   The moon, 2 days before new, will rise at 7:01 tomorrow morning.

Let’s preview February the shortest month.  Through out the month the daylight hours will be getting longer at an increasing pace.  Daylight hours will increase from 9 hours and 51 minutes tomorrow to 11 hours and 6 minutes on the 28th.  The sunrise time will decrease from 8:02 tomorrow to 7:21 at month’s end.  The sunset times will increase from 5:51 on the 1st to 6:29 on the 28th.  Along with that the altitude of the sun at noon will increase from 28 degrees to nearly 38 degrees during the month.  Local noon, by the way for Interlochen and Traverse City is about 12:55 p.m, which is mainly due to the fact that our standard time meridian happens to run through Philadelphia.  The Stardust spacecraft will swing past comet Tempel 1 on the 14th.

* Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.