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USPS Star Calendar for 4-10 September 28 August 2011

Posted by amedalen in September 2011.
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4 Sep    Antares is 4 finger-widths to the moon’s lower right tonight. First-quarter moon at 1739 UT

5 Sep    Tonight, the waxing gibbous moon is between Sagittarius and Scorpius in the south.

6 Sep    Sagittarius is to the moon’s lower right tonight. About two-thirds of the moon’s surface is illuminated.

8 Sep    Magnitude 0.9 Altair is the bright star 2.5 fist-widths above the moon tonight.

9 Sep    Mercury and Regulus rise nearly 1.5 hours before the sun. Magnitude 0.9 Mercury is 0.67 degrees (less than half the width of your index finger held at arm’s length) to the left of magnitude 1.4 Regulus. This is the year’s closest planet-first magnitude star appulse.

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.

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.