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USPS Star Calendar for 29 July-4 August 22 July 2012

Posted by amedalen in August 2012, July 2012.
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29 Jul    The moon is at perigee, 57.59 Earth-radii (367,000 kilometers) away.

1 Aug    Rising shortly before sunset, the full moon hangs low in south at midnight. The bright star 2½ fist-widths above the moon is magnitude 0.9 Altair.

4 Aug    The moon rises more than an hour after sunset.

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USPS Star Calendar for 22-28 July 15 July 2012

Posted by amedalen in July 2012.
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23 Jul    Low in the west at dusk, magnitude 1.0 Mars is 1 fist-width to the thin waxing crescent moon’s upper left, and magnitude 0.8 Saturn is 1 fist-width beyond Mars. Magnitude 1.2 Spica is 2 finger-widths to Saturn’s lower left. Less than 20 percent of the moon’s surface is illuminated.

24 Jul    Tonight the moon has moved to the east. Mars is 3 finger-widths to the moon’s upper right, and Saturn is 1 fist-width to the upper left.

25 Jul    Spica is 3 finger-widths to the moon’s right, low in the southwest tonight.

27 Jul    The head of the Scorpion, Scorpius, is to the moon’s left this evening.

28 Jul    Magnitude 1.1 Antares, the red heart of Scorpius, is less than 3 finger-widths to the waxing gibbous moon’s lower right tonight. Nearly 75 percent of the moon’s surface is illuminated.

USPS Star Calendar for 15-21 July 8 July 2012

Posted by amedalen in July 2012.
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15 Jul    Before first light, the moon forms a tight cluster with Jupiter 2 finger-widths to the upper right, Venus to the lower right and Aldebaran to Venus’ upper right.

16 Jul    Aldebaran, Venus and the waning crescent moon line up low in the east before dawn. Less than 10 percent of the moon’s surface is illuminated.

19 Jul    New moon at 0424 UT. In most of the U.S., the new moon occurs before midnight on the 18th.

21 Jul    Tonight, the moon sets a little more than an hour after the sun. At dusk, find the Big Dipper high in the north, with the handle nearly straight up. Follow the handle’s arc to Arcturus, and speed on to Spica. Don’t mistake Spica for Saturn, which is slightly brighter at magnitude 0.8, versus Spica’s magnitude 1.2.

USPS Star Calendar for 8-14 July 1 July 2012

Posted by amedalen in July 2012.
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9 Jul    Venus is less than ½ finger-width from Aldebaran low in the east before dawn.

11 Jul    Magnitude 1.1 Aldebaran is ½ finger-width to the right of magnitude -4.5 Venus low in the east at first light. 

13 Jul    The moon is at apogee, 63.47 Earth-radii (405,000 kilometers) away.

14 Jul    The moon rises less than 3 hours before the sun. Before dawn, the Seven Sisters or Pleiades Cluster is 2 finger-widths to the moon’s upper left. Magnitude -2.1 Jupiter is 3 finger-widths to the moon’s lower left, and magnitude -4.5 Venus is 3 finger-widths below Jupiter. Magnitude 1.1 Aldebaran is 1 finger-width to Venus’ upper right. About 20 percent of the moon’s surface is illuminated.

USPS Star Calendar for 1-7 July 24 June 2012

Posted by amedalen in July 2012.
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1 Jul    Rising 2 hours before sunset, the moon and Antares will be low in the south after sunset with Antares 1 fist-width to the moon’s right. More than 90 percent of the moon’s surface is illuminated. The moon is at perigee, 56.81 Earth-radii (362,000 kilometers) away from the earth. Reaching its greatest elongation, 25.7 degrees east of the sun, Mercury is low in the west at nightfall, setting 1½ hours after the sun. With a clear view of the western horizon, you can see it easily as the sky darkens.

2 Jul    Rising an hour before sunset, the moon sits above the dome of the Teapot constellation, Sagittarius, late tonight.

5 Jul    Earth reaches aphelion, its farthest distance from the sun, at 0400 UT. We are almost 5 million kilometers (more than 3 million miles) farther from the sun than at perihelion on 3 Jan.

6 Jul    In the southwest before dawn, the moon is between Altair, 3 fist-widths to the upper right, and Fomalhaut, the same distance to the lower left.

7 Jul    Jupiter, Venus and Aldebaran form a nearly vertical line before dawn, with Jupiter at the top, Venus 2 finger-widths below and Aldebaran another ½ finger-width beyond.