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USPS Star Calendar for 16-22 June 9 June 2013

Posted by amedalen in June 2013.
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16 Jun    High in the southwest at dusk, the first-quarter moon sits between Regulus, 3 fist-widths to the right or lower right, and Spica, 2 fist-widths to the left. Venus and Mercury pass close to each other during the next few evenings. Tonight Venus is 1½ finger-widths to Mercury’s lower right. On this day in 1963, Valentina Tereschkova became the first woman in space.

17 Jun    Moving closer, the moon is about 1 fist-width to Spica’s right tonight. Can you make out dim stars between the moon and Spica? You will need good binoculars to see magnitude 4.9 psi Virginis and magnitude 5.3 49 Virginis. 

18 Jun    The waxing gibbous moon is high in the south at sunset. Magnitude 1.2 Spica is 2 finger-widths to the upper right, and magnitude 0.4 Saturn is 4 finger-widths to the upper left. Low in the west, Venus is 1 finger-width to the right of Mercury. About two-thirds of the moon is illuminated.

19 Jun    Saturn is 4 finger-widths to the moon’s upper right tonight.

20 Jun    Tonight, the moon is to the right of Scorpius, the head of the Scorpion. Low in the west at dusk, Mercury is 1.9 degrees to the lower left of Venus.

21 Jun    Magnitude 1.1 Antares, the heart of the Scorpion, is 3 finger-widths to the moon’s lower right tonight. The summer solstice occurs at 0504 UT, as the sun reaches the point farthest north of the celestial equator.

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USPS Star Calendar for 13 to 19 June 6 June 2010

Posted by amedalen in June 2010.
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14 Jun
The waxing crescent moon sets a little more than 2 hours after the sun. Low in the west at dusk, brilliant magnitude –4.0 Venus is just 2 finger-widths above or to the upper right of the moon. The Gemini Twins are 1 fist-width to the right. Use binoculars.

15 Jun
As the sky darkens this evening, look for Venus 1 fist-width to the moon’s right or lower right. The Gemini Twins, Pollux and Castor, lie just beyond Venus. Magnitude 1.3 Regulus is 1½ fist-widths to the upper left and magnitude 1.2 Mars is in a straight line 2 finger-widths beyond Regulus. Even though they are similar in brightness, Mars is easy to distinguish from Regulus because of its redness. Continuing the line beyond Mars another 2½ fist-widths brings us to magnitude 1.0 Saturn. The moon is at perigee, 57.37 earth-radii away.

16 Jun
In the west an hour after sunset, the moon is 2½ fist-widths above the horizon. Regulus is a little more than 2 finger-widths above or to the upper right, and Mars is 4 finger-widths to the upper left. With your binoculars, you should have no trouble spotting magnitude 3.9 rho Leonis, less than 1 finger-width to Mars’ left. As long as you have your binoculars out, look for a dim star one-half finger-width to the moon’s upper left. This is magnitude 4.9 pi Leonis.

On this day in 1963, Valentina Tereshkova became the first woman in space, spending 3 days in orbit aboard the Soviet spacecraft Vostok 6.

17 Jun
Mars and Regulus are about 1 fist-width to the moon’s right tonight. The star 2 fist-widths above the moon is magnitude 2.2 Denebola. Saturn is 1½ fist-widths to the moon’s upper left.

18 Jun
Tonight, Saturn is 4 finger-widths above the moon, and Mars and Regulus are a little more than 2 fist-widths to the right.

19 Jun
Saturn is 1½ fist-widths to the moon’s upper right, while Spica is 1 fist-width to the upper left this evening. The moon is at first quarter at 0430 UT.