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USPS Star Calendar for 4 to 10 April 28 March 2010

Posted by amedalen in April 2010.
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4 Apr
On Easter, the moon sits just above the tail of Scorpius with Sagittarius to its left.

5 Apr
Before first light, look low in the south as the moon passes within one-quarter degree of Kaus Borealis, the star at the top of the Teapot constellation, Sagittarius. Use binoculars.

6 Apr
Last-quarter moon
at 0937 UT

8 Apr
Mercury
is at its greatest elongation east, 19.4 degrees from the sun, making this the best time to spot it this year. Low in the west at evening twilight, magnitude 0.1 Mercury is 1½ finger-widths to the right of magnitude -3.9 Venus. Mercury begins to pull back closer to the horizon but is still easily visible for several more days. Use binoculars.

9 Apr
The moon is at apogee, 63.5 earth-radii away.

10 Apr
Low in the east before dawn, you’ll find magnitude -2.1 Jupiter 1 fist-width to the lower left of the thin waning crescent moon.

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USPS Star Calendar for 28 March to 3 April 21 March 2010

Posted by amedalen in April 2010, March 2010.
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28 Mar
Saturn
is 4 finger-widths to the moon’s left or lower left this evening, and tomorrow morning the pair will be low in the west with Saturn to the moon’s upper right. The moon is at perigee, 56.74 earth-radii away.

29 Mar
Saturn
rises an hour before the nearly full moon, and the pair are high in the southeast before midnight. Saturn is 1 fist-width above the moon while Spica is the same distance to the moon’s lower left. Magnitude 0.2 Arcturus is far to the moon’s left.

30 Mar
The moon rises a few minutes after Spica this evening, about an hour after sunset.

2 Apr
Scorpius
lies just left of the moon low in the southern sky just before dawn.

3 Apr
Look low in the south before sunrise to see Antares, the heart of the Scorpion, within one-half finger-width of the moon. Use binoculars.

USPS Star Calendar for 21 to 27 March 14 March 2010

Posted by amedalen in March 2010.
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21 Mar
Look for the moon high in the west early this evening. The moon lies in a straight line between Capella, 2 fist-widths to the upper right, and Aldebaran, less than 1 fist-width to the lower left. The Pleiades is 1 fist-width to the lower right.

22 Mar
Tonight, you’ll find the moon midway between Capella, to the upper right, and Betelgeuse, to the lower left.

23 Mar
First-quarter moon at 1100 UT

24 Mar
Mars
is 3 finger-widths above or to the upper left of the moon this evening. The Gemini Twins, Pollux and Castor, are to the moon’s upper right, and the bright star 1 fist-width below or to the lower left of the moon is magnitude 0.5 Procyon.

25 Mar
Tonight, Mars is 1 fist-width to the moon’s upper right, Regulus is far to the lower left, and Procyon is to the lower right.

26 Mar
Regulus
is only 2 finger-widths to the moon’s lower left this evening. The Big Dipper stands on its handle, far to the left.

27 Mar
Tonight, Regulus sits 1 fist-width above or to the upper right of the moon, and Saturn is 2 fist-widths to the moon’s lower left.

USPS Star Calendar for 14 to 20 March 7 March 2010

Posted by amedalen in March 2010.
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14 Mar
Daylight saving time. Most of us set our clocks ahead one hour at 0200, when the time jumps forward to 0300. Officially there is no clock hour 0200 to 0300. The change is not made in American Samoa, Hawaii, Arizona (except the Navajo reservation), Saskatchewan, parts of British Columbia, Ontario, Quebec, Puerto Rico, the Virgin Islands and most countries closer to the equator than Mexico. Europe makes the change the last Sunday in March.

15 Mar
The Ides of March mark the day of Julius Caesar’s assassination. New moon at 2102 UT

16 Mar
The thin crescent moon sits low in the west at dusk, and magnitude -3.9 Venus is 3 finger-widths to its left. Use your binoculars.

17 Mar
It’s St. Patrick’s Day. Pinch anybody who isn’t wearing green.

20 Mar
The spring equinox occurs this afternoon as the sun crosses the celestial equator into the northern celestial hemisphere. Until 2007, the equinox fell on 20 or 21 March. From now until 2044, it will occur on 20 March. Afterward, it will sometimes occur on 19 March. This evening the moon passes close to the Pleiades. Use your binoculars.