Home > Constellations, stars > 03/29/2016 – Ephemeris – The Little King Star, Regulus

03/29/2016 – Ephemeris – The Little King Star, Regulus

March 29, 2016

Ephemeris for Tuesday, March 29th.  The Sun will rise at 7:28.  It’ll be up for 12 hours and 39 minutes, setting at 8:07.   The Moon, 2 days before last quarter, will rise at 2:00 tomorrow morning.

Regulus is the brightest star in the constellation of Leo the lion at the bottom of the backward question mark that is the head and mane of Leo. It’s in the southeast at 9 p.m. above the much brighter Planet Jupiter.   Alluding to the lion’s status in the animal kingdom, Regulus is the little king star.  It is dead last in order of brightness of the 21 brightest first magnitude stars, 1/13th the brightness of Sirius the brightest star low in the southwest at the same time.  To the Babylonians it was the king, the 15th of their constellations that marked the passage of the sun.  Regulus is about 79 light years away, and 288 times the brightness of the sun.  It is a rapidly spinning ellipsoid 3  times the sun’s diameter, rotating in just under 16 hours.

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

Addendum

Regulus and Jupiter in the constellation of Leo

Regulus and Jupiter in the constellation of Leo at 10 p.m., March 29, 2016. Created using Cartes du Ciel (Sky Charts).

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