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USPS Star Calendar for 27 October-2 November 20 October 2013

Posted by amedalen in November 2013, October 2013.
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28 Oct    High in the south before first light, the waning crescent moon lies between Procyon, 3 fist-widths to the upper right, and Regulus, 4 finger-widths to the lower left. Mars is 4 finger-widths to Regulus’ lower left.

29 Oct    Mars, Regulus and the moon form a tight triangle before dawn in the east.

1 Nov     The thin waning crescent moon rises 2 hours before the sun this morning. Spica rises later, directly below the moon. Arcturus is more than 3 fist-widths to the left. The Big Dipper stands on its handle to Arcturus’ upper left. Venus reaches its greatest elongation, 47.1 degrees east of the sun.

USPS Star Calendar for 20-26 October 13 October 2013

Posted by amedalen in October 2013.
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20 Oct    The waning gibbous moon rises alongside the Pleiades Cluster a little more than an hour after sunset. By midnight, they are high in the east with the Seven Sisters 4 finger-widths to the moon’s left.

21 Oct    Magnitude 1.1 Aldebaran is 2 finger-widths below the moon tonight, and the Seven Sisters are 1 fist-width above, which is a good time to take a closer look at the Pleiades Cluster.

23 Oct    The moon and Orion rise 3½ hours after sunset and are near the eastern horizon at midnight.

24 Oct    The moon and Orion are high in the south before first light. Jupiter is 1½ fist-widths to the moon’s upper left. This evening, the moon rises an hour before midnight, followed by Jupiter soon thereafter.

25 Oct    Before dawn, look for Jupiter 3 finger-widths to the moon’s upper left. The Gemini Twins are above Jupiter. The moon is at apogee, 63.43 Earth-radii (405,000 kilometers) away.

26 Oct    The moon is 1 fist-width to Jupiter’s lower left in the east with magnitude 0.5 Procyon 1 fist-width below.

USPS Star Calendar for 13-19 October 6 October 2013

Posted by amedalen in October 2013.
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13 Oct    The waxing gibbous moon lies midway between magnitude 0.9 Altair, 3 fist-widths to the upper right, and magnitude 1.3 Fomalhaut, to the lower left. Mars is now to Regulus’ upper left.

14 Oct    Although closer, Mars remains to Regulus’ upper left.

15 Oct    This morning, Mars sinks to Regulus’ left and passes within less than 1 degree.

16 Oct    Now to the lower left of Regulus, Mars falls farther away every day. Meanwhile, in the evening sky, Venus passes within 1.5 degrees of Antares low in the southwest at dusk.

18 Oct    As the moon passes through Earth’s outer shadow tonight, the slight penumbral eclipse of the moon will be difficult to see for all but those living in the eastern half of North America, who may see some faint shading of the moon’s southernmost limb soon after moonrise.

Comet tale 1 October 2013

Posted by amedalen in October 2013.
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Discovered in September 2012, Comet ISON will miss Earth by millions of miles as it travels through our inner solar system, and so will its debris if the comet breaks apart.

A breakup might be disappointing for ISON observers hoping for a spectacular display, but they may see a beautiful string of pearls in the sky, similar to that of Comet S-W 3, which broke up in 2006.

Comet ISON is approaching Mars in the pre-dawn sky. Although invisible to the naked eye, the comet can be seen with a backyard telescope.

Arnold Medalen

USPS Star Calendar for 6-12 October 30 September 2013

Posted by amedalen in October 2013.
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6 Oct    The sun sets 1 hour before the waxing crescent moon. If you have a clear view of the western horizon, you may catch a glimpse of Mercury to the lower left and Saturn just above the moon. This is a good opportunity to view Mercury, which in 3 days will reach its greatest elongation east of the sun.

7 Oct    At evening twilight, magnitude –4.2 Venus will be 4 finger-widths to the left of the thin crescent moon.

8 Oct    Tonight the moon forms a triangle in the southwest with Venus, 3 finger-widths to the lower right, and Antares, the heart of the Scorpion, the same distance to the lower left.

9 Oct    This evening, Mercury reaches its greatest elongation, 25.3 degrees east of the sun.

10 Oct    The moon is at perigee, 57.98 Earth-radii (370,000 kilometers) away. This is the second-farthest perigee of the year.

11 Oct    The first-quarter moon is high in the south at dusk. Magnitude 0.9 Altair is 3 fist-widths above the moon.

12 Oct    Over the next few mornings, Mars and Regulus pass near each other, giving early risers quite a show. In the east, magnitude 1.6 Mars is 1 finger-width above magnitude 1.3 Regulus.

USPS Star Calendar for 29 September-5 October 30 September 2013

Posted by amedalen in October 2013, September 2013.
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30 Sep    This morning, Mars is 1 fist-width to the moon’s lower left, and Regulus is 1 fist-width to Mars’ lower left. The moon is about 20 percent illuminated.

1 Oct    Low in the east at first light, magnitude 1.3 Regulus is 3 finger-widths to the moon’s left, and magnitude 1.6 Mars is 4 finger-widths to its upper left. Less than 20 percent of the moon’s surface is illuminated.

2 Oct    Regulus and Mars are above the moon, low in the east before dawn.

5 Oct    New moon at 0033 UT