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USPS Star Calendar for 24-30 November 17 November 2013

Posted by amedalen in November 2013.
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24 Nov    Now racing at 4 to 5 degrees per day, Comet ISON passes only 5 degrees from Mercury and Saturn. The comet is predicted to brighten to magnitude 0.4 to 0.0 compared with magnitude –0.7 Mercury and magnitude 0.6 Saturn. Spica is far to the upper right of Comet ISON’s head, but the tail may extend all the way up to Spica or even farther.

25 Nov    High in the south before dawn, magnitude 1.3 Regulus is 3 finger-widths to the upper left of the first-quarter moon, and Mars is 2½ fist-widths to the lower left. During the next few mornings, the moon moves left toward Mars. Mercury and Saturn are close, low in the east before dawn. They rise 1½ hours before the sun, so you will have to look quickly. Magnitude –0.7 Mercury is less than 1 degree to the upper right of magnitude 0.6 Saturn.

26 Nov    This morning, Regulus is 1½ fist-widths to the moon’s upper right, and Mars is the same distance to the lower left. Saturn is less than 1 degree above Mercury.

27 Nov    Mars is 3 finger-widths to the moon’s upper left this morning.

28 Nov    At perihelion, Comet ISON may be brighter than Sirius and Venus or even as bright as a half moon, and could be visible during daylight.

29 Nov    Spica is 1 finger-width to the moon’s lower left tonight. Only 20 percent of the moon’s surface is illuminated.

30 Nov    The moon is between Spica, 1 fist-width to the upper right, and magnitude 0.6 Saturn, about the same distance to the lower left. Look quickly because Saturn rises less than 2 hours before the sun and will quickly be lost in the brightness.

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