USPS Star Calendar for 1-7 September 25 August 2013Posted by amedalen in September 2013.
Tags: Arcturus, Big Dipper, Cassiopeia, equation of time, Gemini Twins, Jupiter, Lazy W, Mars, new moon, Polaris, Procyon, Sagittarius, Saturn, Scorpius, Spica, Summer Triangle, Ursa Major, Venus
1 Sep In the east before dawn, the waning crescent moon stands between the Gemini Twins, 1 fist-width to the upper left, and Procyon, the same distance to the lower right. Brilliant magnitude –2.0 Jupiter is 1 fist-width directly above the moon. Less than 20 percent of the moon’s surface is illuminated. The equation of time is zero.
2 Sep Mars is 3 finger-widths to the slivered moon’s upper left before dawn.
3 Sep Only two days from new, the moon, about 5 percent illuminated, rises less than two hours before the sun.
5 Sep Low in the west at dusk, the first light you see is magnitude –4.0 Venus, followed by magnitude 0.7 Saturn, 1 fist-width to the upper left, and magnitude 1.2 Spica, less than 1 finger-width to Venus’ lower left. New moon at 1136 UT
7 Sep Only a few days old, the moon sets soon after the sun, making stargazing easier. Ursa Major, the Big Dipper, sits a little left of north with its handle pointing to the upper left. The pointer stars at the end of the bucket point toward Polaris, less than 3 fist-widths to the upper right. Looking to the right (east), you can easily make out Cassiopeia, the Lazy W constellation. Turning farther right, now facing south, you can see the Summer Triangle to Cassiopeia’s upper right. Sagittarius and Scorpius are easy to spot near the horizon. Finishing the turn, now facing west, you can see Arcturus, the bright star in the middle of the sky.