Sunday, August 30, 2009

Astronomical Society of Northern New England | Astronomical Highlight : September

http://maineoutdoorjournal.mainetoday.com/story.php?id=279437&ac=Outdoors

• Sept. 2. The moon passes 3 degrees north of Jupiter.

• Sept. 3. Jupiter will appear to lose all four of its largest moons for a time this morning.

• Sept. 4. Full moon is at 12:03 p.m. This is usually called the Harvest Moon, but only if it is nearest the equinox, which happens two years out of three. This year the October full moon is nearest the fall equinox, so September's moon is called the full corn moon.

• Sept. 9. Viking 2 was launched to Mars on this day in 1975.

• Sept. 11. Last quarter moon is at 10:16 p.m.

• Sept. 13. The moon passes one degree north of Mars this morning.

• Sept. 16. The moon is at perigee, or closest to the Earth this morning at 226,212 miles. The moon passes just south of Venus today.

• Sept. 17. Saturn is in conjunction with the sun.

• Sept. 18. New moon is at 2:44 p.m. EDT.

• Sept. 20. Venus passes half a degree north of Regulus in Leo the Lion.

• Sept. 21. The fourth-largest asteroid, named Juno, is at opposition at 4 a.m. today. You can see it with a pair of binoculars in Pisces.

• Sept. 22. The autumnal equinox occurs at 5:19 p.m.

• Sept. 24. The moon passes less than one degree north of Antares — 700 times the diameter of our sun and one of the biggest stars in our galaxy — this morning.

• Sept. 26. First quarter moon is at 12:50 a.m.

• Sept. 27. The moon is at apogee, or farthest from the Earth today at 251,302 miles.