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Articles > April 2010

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Sky Calendar -- April 2010

	April is Global Astronomy Month
3	Moon near Antares (morning sky) at 10h UT.
4	Mercury 3.0° WNW of Venus (19° from Sun, evening sky) at 8h UT. Mags. -0.6 and -3.9. Favors northern hemisphere.
6	Last Quarter Moon at 9:37 UT.
8	Mercury at greatest elongation, 20° east from Sun (evening sky) at 23h UT. Mag. +0.1.
9	Moon at apogee (farthest from Earth) at 3h UT (distance 405,002 km; angular size 29.4').
11	Moon near Jupiter (morning sky) at 18h UT. Mag. -2.1.
14	New Moon at 12:29 UT. Start of lunation 1080. • Lunation Number (Wikipedia)
16	Moon near Venus (evening sky, 23° from Sun) at 11h UT. Mag. -3.9. Favors northern hemisphere.
17	Moon near the Pleiades (evening sky) at 4h UT.
17	Mars 1.1° NNE of Beehive cluster (M44) at 19h UT. Mag. +0.5.
21	First Quarter Moon at 18:20 UT.
22	Moon near Beehive cluster (M44) (evening sky) at 3h UT.
22	Moon near Mars (evening sky) at 5h UT. Mag. +0.6.
22	Lyrid meteor shower peaks at 17h UT. Active April 16-25. Radiant is between Hercules and Lyra. Expect 10 to 20 bright, fast meteors per hour at its peak. • The Lyrids (Gary Kronk) • Meteor Shower Calendar (IMO) • Meteor Shower Calendar 2010 (PDF) (IMO)
23	Moon near Regulus (evening sky) at 19h UT.
24	Moon at perigee (closest to Earth) at 21h UT (367,141 km; 32.9').
25	Venus 3.5° SSE of the Pleiades (25° from Sun, evening sky) at 10h UT. Mag. -3.9. • The Pleiades (Wikipedia)
25	Moon near Saturn (evening sky) at 19h UT. Mag. +0.8.
27	Moon near Spica (evening sky) at 13h UT.
28	Full Moon at 12:18 UT. • Full Moon Names (Wikipedia)
28	Mercury at inferior conjunction with the Sun at 17h UT. Mercury passes into the morning sky.
30	Moon near Antares (morning sky) at 22h UT.
All times Universal Time (UT). USA Eastern Summer Time = UT - 4 hours.

Clear skies till next month!

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Sky Calendar References:

Astronomical Calendar 2010 (book) by Guy Ottewell
Starry Night Pro Plus v6.3 (software) by Imaginova
Sky & Telescope (magazine) by Sky Publishing
Astronomical Tables of the Sun, Moon and Planets (book) by Jean Meeus
Celestial Delights (book) by Francis Reddy and Greg Walz-Chojnacki

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