Home > Ephemeris Program, Seasons > 01/01/2013 – Ephemeris – We start the year with the sun closest to us.

01/01/2013 – Ephemeris – We start the year with the sun closest to us.

January 1, 2013

Ephemeris for New Years Day, Tuesday, January 1st 2013.  The sun will rise at 8:19.  It’ll be up for 8 hours and 53 minutes, setting at 5:13.   The moon, 3 days before last quarter, will rise at 9:55 this evening.

Happy New Year and happy perihelion Day.  What’s a perihelion?  Well. It’s not two helions, whatever they are.  Perihelion is the point in an orbit of the sun that is nearest to the sun.  This evening the earth will reach that point in its travels around the sun.  Since its winter time, the sun’s distance apparently doesn’t cause the seasons.  Actually the sun now as about a million and a half miles closer than mean, which isn’t much out of 93 million miles.  But, although we don’t notice it in northern Michigan, it makes winter the shortest season at 89 days.  The real cause of the seasons is the tilt of the earth’s axis.  Now the sun appears highest over the southern hemisphere.  The sun’s up less than 9 hours here and hangs low over the southern horizon at noon.

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

 

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