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USPS Star Calendar for 25 April to 1 May 18 April 2010

Posted by amedalen in April 2010, May 2010.
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25 Apr
Tonight, Saturn is 1 fist-width above the moon, and Spica is nearly 2 fist-widths to the lower left.

26 Apr
Spica is 2 finger-widths to the moon’s left, and Saturn is 2 fist-widths to the upper right.

27 Apr
Spica is 1 fist-width above or to the upper right of the moon this evening. Arcturus is 3½ fist-widths to the upper left.

28 Apr
The moon is full at 1218 UT. In inferior conjunction with the sun, Mercury passes from the evening sky to the morning sky.

29 Apr
The moon rises 2 hours after sunset, followed shortly by Antares. They travel together across the southern horizon and are low in the southwest tomorrow morning.

30 Apr
Today is May Eve, one of the four cross-quarter days, midway between solstices and equinoxes.

1 May
Today is May Day or Beltane, the fire festival celebrated with bonfires and maypoles.

USPS Star Calendar for 18 to 24 April 11 April 2010

Posted by amedalen in April 2010.
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18 Apr
Tonight, Capella is 2 fist-widths to the moon’s upper right. Betelgeuse is 1½ fist-widths to the moon’s lower left, and Aldebaran is 1½ fist-widths below the moon. The Gemini Twins are nearly 3 fist-widths to the moon’s upper left, and Mars is another 1½ fist-widths beyond the Twins.

19 Apr
The moon lies in a straight line between Capella, nearly 3 fist-widths to the right or lower right, and Procyon, 2 fist-widths to the left or upper left. The Gemini Twins are 1½ fist-widths above the moon.

20 Apr
The moon lies between Procyon, 1½ fist-widths to the lower left, and the Gemini Twins, one-half fist-width to the upper right. Mars is 1½ fist-widths to the moon’s upper left.

21 Apr
High in the southwest tonight, Mars is only 2 finger-widths above the moon, with the Gemini Twins to its right and Regulus to its left. First-quarter moon at 1820 UT.

22 Apr
Mars is now 1 fist-width to the moon’s upper right. The Lyrid meteor shower will be at its best before dawn.

23 Apr
Tonight, Regulus is 3 finger-widths to the moon’s upper right, Mars is 2 fist-widths beyond, and Saturn is 2 fist-widths to the left.

24 Apr
Magnitude 0.7 Saturn is 1 fist-width to the moon’s left this evening. The moon is at perigee, 57.56 earth-radii away.

USPS Star Calendar for 11 to 17 April 4 April 2010

Posted by amedalen in April 2010.
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11 Apr
The moon rises 1½ hours before the sun and is followed by Jupiter a half-hour later. Both will be visible as the sky begins to brighten. Use binoculars. Apollo 13 launched this day in 1970.

12 Apr
On this day in 1961, Russian cosmonaut Yuri Gagarin became the first human in space. Twenty years later to the day in 1981, Columbia (STS-1), the first U.S. space shuttle, was launched.

14 Apr
New moon at 1229 UT.

15 Apr
The thin waxing crescent moon joins Venus and Mercury low in the south tonight. Magnitude 1.5 Mercury is less than 1 finger-width below the moon, while Venus is 3 finger-widths to the upper left.

16 Apr
The moon is between Venus and the Pleiades tonight. Measure 4 finger-widths down to Venus and 1 finger-width up to the Pleiades. Meanwhile, to the lower right, Mercury sinks closer to the horizon.

17 Apr
Tonight, look for Aldebaran 3 finger-widths to the moon’s lower left. Orion is even farther left, and the Pleiades Cluster is 1 fist-width to the lower right.

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.

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.