Archive for April 18, 2017

04/18/2017 – Ephemeris – How Queen Berenice lost her hair

April 18, 2017 Comments off

Ephemeris for Tuesday, April 18th.  The Sun rises at 6:52.  It’ll be up for 13 hours and 38 minutes, setting at 8:31.  The Moon, 1 day before last quarter, will rise at 3:04 tomorrow morning.

High in the east-southeast at 10 p.m. is the tiny and faint constellation of Coma Berenices, or Berenice’s Hair.  In it are lots of faint stars that look like several strands of hair.  The whole group will fit in the field of a pair of binoculars, which will also show many more stars.  The star cluster is 280 light years away, nearly twice as far as the Hyades, the face of Taurus the Bull setting in the west.  The story behind it was that Berenice was the Queen of Egypt, whose husband was away at war.  She offered her golden tresses to the gods for the king’s safe return.  The hair, was placed in a temple.  However the offering disappeared when the king returned.  Ever since the constellation of Coma Berenices has been seen to commemorate the queen’s sacrifice.

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

Coma Berenices finder chart

Coma Berenices finder chart for 10 p.m. April 18, 2017. Created using Stellarium.

Coma Berenices

Approximate 7 power binocular field of view of the Coma Berenices Cluster. Created using Carted du Ciel (Sky Charts).