Bob Moler's Ephemeris Blog

Ephemeris for Friday, May 31st.  Today the sun will be up for 15 hours and 19 minutes, setting at 9:19.   The moon, at last quarter today, will rise at 2:11 tomorrow morning.  Tomorrow the sun will rise at 6:00.

Let’s take a look at June skies as the 6th month starts tomorrow.  There will be a lot of sun this month.  The daylight hours will increase a bit from 15 hours and 20 minutes tomorrow to 15 hours and 33 minutes on the 21st, retreating back to 15 hours 30 minutes at month’s end.  At this time of the year the sunset times for Ludington, Interlochen, Petoskey and Mackinaw City are very nearly the same.  However the sunrise times are at their most divergent.  With Ludington’s sunrise being 14 minutes later than Mackinaw City’s.  The altitude of the sun above the southern horizon at local noon will increase from about 67 and a half degrees to 68 and three quarters on the 21st.  Summer will start on the 21st at 1:04 a.m.

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

Addendum

The stars and planets, specifically for June 15, 2013 at 11 p.m.

The constellation abbreviations, names and bright star names are found here.

• The arrow from the pointer stars of the Big Dipper to Polaris the North Star, near the north celestial pole.
• Follow the arc of the handle of the Big Dipper to Arcturus.
• A Leaky Dipper drips on Leo
• Follow the spike to Spica.
• The Summer Triangle (in red)