Home > Constellations, Ephemeris Program, stars > 03/28/2016 – Ephemeris – The brightest spring star is now rising in the east

03/28/2016 – Ephemeris – The brightest spring star is now rising in the east

March 28, 2016

Ephemeris for Monday, March 28th.  The Sun will rise at 7:30.  It’ll be up for 12 hours and 35 minutes, setting at 8:06.   The Moon, 3 days before last quarter, will rise at 1:07 tomorrow morning.

Rising in the eastern sky at 10 p.m. is the 4th brightest night-time star.  It’s found off the curve of the handle of the Big Dipper above it in the northeast. It’s the tail end of a kite shaped constellation of Boötes the herdsman.   Arcturus is an orange-colored giant star, 37 light years away.  Its light was used open the 1933 Chicago Worlds Fair believing its light left the star in 1893 the year of the previous Chicago Worlds Fair.  It turns out that Arcturus is 3 light years closer than what they thought.  Arcturus is a rapidly moving star.  It’s velocity is about 76 miles (122 km) per second. It’s at its nearest to the sun now.  Arcturus is thought to be close to the sun’s mass, and much older.  It may be a glimpse of what the sun will look like in 5 billion years.

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

Addendum

Arcturus finder chart

Arcturus off the handle of the Big Dipper rising. Created using Stellarium.

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