[net.astro] StarDate: January 29 The Big and Little Dogs

dipper@utastro.UUCP (Debbie Byrd) (01/29/85)

The brightest star visible from Earth is called Sirius.  More on this
star and its constellation -- after this.

January 29  The Big and Little Dogs

Anyone can find the star Sirius, which is a fair-sized star, not far
away -- and the brightest star visible in Earth's sky.

Sirius rises in the southeast, and arcs across the southern sky -- with
no near competitor in brilliance except Venus, now in the west after
sunset.  As Venus sets, Sirius climbs still higher in the sky -- to
become the brightest star in the winter night.

Sirius is part of the constellation Canis Major, the Big Dog.  There's
a Little Dog, too, located somewhat higher in the sky -- with its
leading light called Procyon.

The Big and Little Dogs are said to be companions to the constellation
Orion, the mighty hunter of mythology.  The dogs follow Orion across
the sky.  Orion is recognizable for his belt -- those three
medium-bright stars that form a short, straight row in the south -- and
the belt stars point to Sirius.

The rest of the constellation Canis Major -- the Big Dog -- is located
around and mostly below Sirius.  This constellation is a striking
pattern -- with a star on either side of Sirius -- and a line of stars
leading down into a triangle -- supposedly the hindquarters of the
dog.  The constellation may or may not look like a dog to you.  But
it's a noticeable pattern you can pick out just by looking in an
unobstructed southern evening sky.


Script by Deborah Byrd.


(c) Copyright 1984, 1985 McDonald Observatory, University of Texas at Austin