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USPS Star Calendar for 2-8 October 25 September 2011

Posted by amedalen in October 2011.
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3 Oct    The moon is above the dome of Sagittarius this evening. Altair is 3.5 fist-widths above or to the upper left of the moon.

4 Oct    On this day in 1957, the Soviet Union launched Sputnik 1, the world’s first artificial satellite. First-quarter moon at 0315 UT (last night in the U.S.)

5 Oct    Altair is 2.5 fist-widths to the moon’s upper right tonight.

7 Oct    The waxing gibbous moon rises 2 hours before sunset. Later tonight, magnitude 0.9 Altair is 3.5 fist-widths to the moon’s upper right and magnitude 1.3 Fomalhaut is near the horizon 2.5 fist-widths below the moon.

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USPS Star Calendar for 25 September-1 October 18 September 2011

Posted by amedalen in October 2011, September 2011.
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25 Sep    At dawn, Regulus is 4 finger-widths to the moon’s upper left. Less than 10 percent of the moon’s surface is illuminated.

27 Sep    New moon at 1109 UT

28 Sep    The moon is at perigee, less than 358,000 kilometers or 56.06 Earth-radii away. Perigee occurs only 14 hours after the new moon, so we can expect extreme tides.

30 Sep    Look for the head of the Scorpion to the left of the thin waxing crescent moon low in the southwest at dusk.

1 Oct    Low in the southwest at sunset, the waxing crescent moon is 2 finger-widths above Antares. The Big Dipper is far to the right above the northern horizon. The moon sets 3 hours after the sun.

USPS Star Calendar for 18-24 September 11 September 2011

Posted by amedalen in September 2011.
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18 Sep    High in the south before dawn, the Pleiades Cluster is 1 finger-width to the waning gibbous moon’s upper right. Jupiter is 2 fist-widths to the lower right, and Aldebaran is 1 fist-width to the lower left. Orion is beyond Aldebaran. About two-thirds of the moon’s surface is illuminated. [Binoculars]

19 Sep    High in the south at first light, the moon is between Mars, 4.5 fist-widths to the lower left, and Jupiter, 3.5 fist-widths to the right. Aldebaran is 3 finger-widths to the lower right.

20 Sep    Last-quarter moon at 1339 UT

22 Sep    The waning crescent moon is high in the east before dawn. Magnitude 0.5 Procyon is 1.5 fist-widths to the moon’s lower right, and Mars is 1 fist-width to the lower left. The Gemini Twins, Pollux and Castor, are 1 fist-width to the upper left. Magnitude 1.2 Pollux is the closer, while dimmer magnitude 1.6 Castor is farther to the upper left.

23 Sep    The autumnal equinox occurs at 0905 UT as the sun crosses into the southern celestial hemisphere. Mars is 3 finger-widths to the thin crescent moon’s upper left before dawn. Only 25 percent of the moon’s surface is illuminated.

24 Sep    Regulus is 1 fist-width to the moon’s lower left, low in the east before dawn. The Big Dipper stands on its handle far to the left.

USPS Star Calendar for 11-17 September 4 September 2011

Posted by amedalen in September 2011.
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11 Sep    Rising a half-hour before sunset, the moon is high in the southeast before midnight. Magnitude 1.3 Fomalhaut is 2.5 fist-widths to the lower right, Altair is 5 fist-widths to the upper right, and Jupiter is the same distance to the lower left.

12 Sep    The full moon closest to the autumnal equinox, the Harvest Moon, occurs at 0927 UT.

13 Sep    Early tonight, magnitude -2.7 Jupiter is nearly 3 fist-widths to the moon’s lower left in the southeast. Watch as the moon catches up with Jupiter the next few evenings.

14 Sep    Jupiter is only 1.5 fist-widths to the moon’s lower left tonight. More than 90 percent of the moon’s surface is illuminated. Try to spot magnitude 3.7 eta Piscium, 2 finger-widths to the moon’s left. [Binoculars]

15 Sep    The moon rises late tonight, a little more than a half-hour before Jupiter, which is 3 finger-widths below. The moon is at apogee, more than 405,000 kilometers or 63.67 Earth-radii away.

16 Sep    High in the southwest at first light, the moon and Jupiter rise 2 hours after sunset. Jupiter is 4 finger-widths to the moon’s right. Tomorrow morning, they are high in the southwest with Jupiter nearly 1 fist-width below the moon.

17 Sep    Tonight, the moon rises late, about 40 minutes after Jupiter. The Pleiades Cluster is to the moon’s left. [Binoculars]