Archive for September 24, 2019

09/24/2019 – Ephemeris – Cassiopeia the “W” shaped constellation

September 24, 2019 Comments off

Ephemeris for Tuesday, September 24th. Today the Sun will be up for 12 hours and 4 minutes, setting at 7:36, and it will rise tomorrow at 7:33. The Moon, 3 days past last quarter, will rise at 3:13 tomorrow morning.

The stars of the autumn skies slowly are replacing the summer stars from the east. Look in the northeastern sky by 9 p.m. and you can find the W shaped constellation of Cassiopeia the queen. Cassiopeia is so far north that it never sets for us in Michigan. It is opposite the pole star Polaris from the Big Dipper. There’s a dim star that appears above the middle star of the W which turns the W into a very crooked backed chair. Cassiopeia, in Greek mythology, represents a queen of ancient Ethiopia, the W represents the profile of her throne. She enters in to the great autumn story whose other characters are also seen in the stars as the constellations Andromeda, Pegasus, Perseus, Cetus and her husband Cepheus.

For my retelling of the Greek myth that links these autumn constellations click here.

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


Cassiopeia finder

Cassiopeia, in the northeast is opposite Polaris from the Big Dipper. For 9 p.m. in late September. Created using Stellarium. Artistic credit: Johan Meuris.