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08/22/2014 – Ephemeris – Cassiopeia Rising

August 22, 2014 Comments off

Ephemeris for Friday, August 22nd.  The sun rises at 6:53.  It’ll be up for 13 hours and 43 minutes, setting at 8:36.   The moon, 3 days before new, will rise at 5:08 tomorrow morning.

Now in the northeastern sky at 10 p.m. or later is the constellation of Cassiopeia the queen, which looks like, in its current orientation like the letter W.  The Milky Way runs through it, if you trace the Milky Way from the zenith back to the northeast.  The milky band isn’t as bright here as it is in the teapot shaped Sagittarius to the south.  That’s because in looking to the south we are looking toward the star clouds of the dense spiral arm toward the center of the galaxy.  In Cassiopeia, and in the winter sky, we are looking out to the less populated galactic arms farther out from the center of the Milky Way.   Cassiopeia can be found using the Big Dipper.  A line from the star Mizar at the bend of the handle of the dipper through Polaris points to Cassiopeia.  Cassiopeia doesn’t set for us in northern Michigan.

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

Addendum

Finding Cassiopeia

Finding Cassiopeia using the Big Dipper or Ursa Major at 10 p.m. August 22, 2014 using the angle measurement tool as a pointer. Created using Stellarium.

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