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  Sky Calendar -- July 2007
1 Venus 0.66° from Saturn at 8h UT (43° from Sun, evening sky). A spectacular pairing! Mags. -4.4 and +0.6. Both planets appear in the same field of view in a low-power telescope. The best planet-planet conjunction of 2007.
6 Earth at Aphelion (farthest from Sun) at 24h UT. The Sun-Earth distance is 1.01671 a.u. or about 152.1 million km.
Earth at Aphelion (SpaceWeather.com)
Photographic Size Comparison (Anthony Ayiomamitis)
7 Last Quarter Moon at 16:54 UT.
9 Moon near Mars at 11h UT (morning sky). Mag. +0.6.
9 Moon at perigee (closest to Earth) at 22h UT (368,528 km; 32.4').
10 Moon near the Pleiades at 21h UT (morning sky).
13 Friday-the-13th, supposed to be unlucky. Friday falls on the 13th more often than any other day.
How Common are Friday the 13ths? (Math Forum & Drexel)
13 Venus 1.7° from Regulus at 8h UT (evening sky). Mags. -4.5 and +1.3.
14 New Moon at 12:04 UT. Start of lunation 1046.
14 Venus at its brightest at 17h UT. Mag. -4.5.
16 Moon very near Saturn at 23h UT (30° from Sun, evening sky). Occultation visible from western South America and Hawaii (day). Mag +0.6.
Occultation of Saturn (IOTA)
17 Moon very near Regulus at 9h UT (evening sky). Occultation visible from Indonesia, northern Australia and The Philippines. Mag. +1.3.
Occultation of Regulus (IOTA)
17 Moon near Venus at 12h UT (evening sky). Mag -4.5.
20 Mercury at greatest elongation, 20° west from Sun (morning sky) at 15h UT. Mag. +0.2. Look low in the east-northeast about 30 minutes before sunrise.
21 Moon near Spica at 20h UT (evening sky). Mag. +1.0.
22 First Quarter Moon at 6:29 UT.
22 Moon at apogee (farthest from Earth) at 9h UT (distance 404,150 km; angular size 29.6').
25 Moon very near Antares at 16h UT (evening sky). Occultation visible from Southern Africa and S.E. Australia.
Occultation of Antares (IOTA)
25 Moon near Jupiter at 17h UT (evening sky).
30 Full Moon at 0:48 UT. The full Moon of July is called the "Thunder Moon" or "Hay Moon".
Full Moon Names (Wikipedia)
All times Universal Time (UT). USA Eastern Summer Time = UT - 4 hours.

Clear skies till next month!

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