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USPS Star Calendar for 28 August-3 September 21 August 2011

Posted by amedalen in August 2011, September 2011.
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29 Aug    New moon at 0304 UT

30 Aug    The moon is at perigee, 361,000 kilometers or 56.58 Earth-radii away.

1 Sep    Low in the west at sunset, magnitude 1.2 Spica is 1 fist-width to the moon’s right or lower right, and magnitude 0.9 Saturn is another fist-width beyond Spica. About 20 percent of the moon’s surface is illuminated. The equation of time is zero.

2 Sep    Low in the east before dawn, look for magnitude 0.1 Mercury 3 or 4 finger-widths to the upper right of magnitude 1.3 Regulus. Mercury reaches its greatest elongation, 18.1 degrees west of the sun, early tomorrow morning.

3 Sep    Tonight, the moon is in the head of the Scorpion with magnitude 1.1 Antares 4 finger-widths to the left. About one-third of the moon’s surface is illuminated.

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USPS Star Calendar for 21-27 August 14 August 2011

Posted by amedalen in August 2011.
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21 Aug    High in the south at first light, the moon is between Jupiter, a little more than 1 fist-width to the right or lower right, and the Pleiades Cluster, 3 finger-widths to the left or upper left. Last-quarter moon at 2154 UT

22 Aug    High in the southwest at first light, Aldebaran is 4 finger-widths below the moon, and Orion is a couple of fist-widths below Aldebaran. The Pleiades Cluster is 3 finger-widths to the moon’s upper right.

23 Aug    High in the southeast before dawn, Aldebaran is 1 fist-width to the moon’s right, Capella is 2 fist-widths to the upper left, Mars is a little more than 2 fist-widths to the lower left, and Orion is to the lower right. A little more than one-third of the moon’s surface is illuminated.

25 Aug    Rising 4 hours before the sun, Mars and the waning crescent moon are high in the east at first light separated by only 1 finger-width. Only 20 percent of the moon’s surface is illuminated.

26 Aug    Low in the east before dawn, magnitude 0.5 Procyon is 1 fist-width to the moon’s lower right, and the Gemini Twins are 1 fist-width to its upper left. Only 10 percent of the moon’s surface is illuminated.

27 Aug    The moon rises less than 2 hours before the sun. Before the sky brightens, look for Mercury 3 finger-widths to the moon’s lower left. You’ll need a clear view of the eastern horizon.

USPS Star Calendar for 14-20 August 7 August 2011

Posted by amedalen in August 2011.
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15 Aug    The moon rises a half-hour after sunset.

16 Aug    In superior conjunction, Venus passes on the other side of the sun and will be visible in the evening sky before the end of September.

18 Aug    The moon is at apogee, more than 405,000 kilometers or 63.53 Earth-radii away. The moon rises 2 hours after sunset, and Jupiter follows an hour later.

19 Aug    Separated by 1 fist-width, Jupiter and the moon are high in the south before first light. Tonight the moon rises 2.5 hours after sunset, and Jupiter follows a half-hour later. Tonight, they travel across the sky only 2 finger-widths apart.

20 Aug    Separated by 2 finger-widths, Jupiter and the moon are high in the south before first light.

USPS Star Calendar for 7-13 August 31 July 2011

Posted by amedalen in August 2011.
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7 Aug    Tonight use binoculars to spot at least three stars between the moon and Arcturus, 2 finger-widths to the lower left. [Binoculars]

8 Aug    Arcturus is 1 fist-width to the moon’s right or lower right tonight.

9 Aug    The waxing gibbous moon is above the dome of the Teapot constellation. Nearly 90 percent of the moon’s surface is illuminated.

10 Aug    The moon rises to Sagittarius’ left 2 hours before sunset. After twilight, they are in the southeast.

11 Aug    The nearly full moon rises a little more than an hour before sunset. Soon after sunset, look for magnitude 0.9 Altair 2.5 fist-widths to the moon’s upper left.

13 Aug    Full moon at 1857 UT

USPS Star Calendar for 31 July-6 August 24 July 2011

Posted by amedalen in August 2011, July 2011.
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1 Aug    Low in the west at dusk, Mercury is 4 finger-widths to the moon’s lower right. Tomorrow Mercury begins retrograde motion to the west and soon disappears into the sun’s glow.

2 Aug    The moon is at perigee, 57.35 Earth-radii or 366,000 kilometers away.

3 Aug    About an hour after sunset, look just above the western horizon to see magnitude 0.9 Saturn 4 finger-widths above the moon and magnitude 1.2 Spica 1.5 fist-widths to the upper left. Less than 20 percent of the moon’s surface is illuminated.

4 Aug    Magnitude 1.2 Spica is only 1 finger-width above the moon tonight.

6 Aug    First-quarter moon at 1108 UT