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USPS Star Calendar for 22-28 September 15 September 2013

Posted by amedalen in September 2013.
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22 Sep    Today marks the first day of fall, the autumnal equinox, as the sun crosses the celestial equator into the Southern Hemisphere.

23 Sep    Using binoculars, look for the Pleiades Cluster 3 finger-widths to the moon’s upper left this evening.

24 Sep    High in the southwest before dawn, the Pleiades Cluster is 3 finger-widths to the moon’s upper right, and Aldebaran is less than 1 fist-width to the left.

25 Sep    In the south before dawn, bright magnitude 1.1 Aldebaran is 2 finger-widths to the moon’s lower right. To the moon’s lower left, Orion the Mighty Hunter dominates the southern sky.

26 Sep    Rising shortly after midnight, the first-quarter moon is high in the south before dawn, midway between Jupiter to the lower left and Aldebaran to the upper right. The brightest star in Orion, magnitude 0.6 Betelgeuse, is 1 fist-width below the moon.

27 Sep    Magnitude 1.9 Alhena, in the constellation Gemini, is 1 finger-width below the moon in the pre-dawn sky. The Twins, Pollux and Castor, are nearly 2 fist-widths to the left. Jupiter is 1 fist-width to the moon’s lower left. The moon is at apogee, 63.39 Earth-radii (251,000 miles) away. Last-quarter moon at 0355 UT

28 Sep    The moon is between magnitude –2.2 Jupiter, 3 finger-widths to the upper left, and magnitude 0.5 Procyon, a little more than 1 fist-width to the lower right.


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