September 2010

1. Sun
2. Mon
3. Tue
4. Wed
5. Thu
6. Fri
7. Sat
11. 1 Last qtr
12. 2 40%
13. 3 30%
14. 4 20%
15. 5 11%
16. 6 5%
17. 7 1%
18. 8 New
19. 9 3%
20. 10 8%
21. 11 15%
22. 12 24%
23. 13 34%
24. 14 44%
25. 15 First qtr
26. 16 64%
27. 17 73%
28. 18 81%
29. 19 88%
30. 20 93%
31. 21 97%
32. 22 99%
33. 23 Full
34. 24 98%
35. 25 95%
36. 26 90%
37. 27 83%
38. 28 75%
39. 29 66%
40. 30 Last qtr

• Moon phase
• Perigee or apogee
• Eclipse
• Planets
• Equinox or solstice

Events in September 2010

1. Wed, Sep 11:22 PM

   Last Quarter

   Half of the disc is lit. The Moon rises around midnight and is up through the morning.

2. Fri, Sep 38:29 AM

   Mercury at inferior conjunction

   Passes between Earth and the Sun and is lost in its glare.

3. Tue, Sep 75:13 PM

   Moon and Mercury close together

   They pass 1.5° apart in the sky.

4. Tue, Sep 7

   Perigee

   The Moon's closest point to Earth on this orbit: 357,200 km.

5. Wed, Sep 86:30 AM

   New Moon

   The Moon passes between Earth and the Sun and cannot be seen. These are the darkest nights of the month.

6. Fri, Sep 1010:20 PM

   Mars, Moon, and Venus gathered

   All within 6.1° of each other in the sky.

7. Sat, Sep 111:16 AM

   Moon and Mars close together

   They pass 4.7° apart in the sky.

8. Sat, Sep 118:54 AM

   Moon and Venus close together

   They pass 0.3° apart in the sky.

9. Wed, Sep 151:50 AM

   First Quarter

   Half of the disc is lit. The Moon is high at sunset and sets around midnight.

10. Sat, Sep 189:11 PM

    Jupiter and Uranus close together

    They pass 0.8° apart in the sky.

11. Sun, Sep 191:23 PM

    Mercury at greatest elongation

    18° from the Sun in the morning sky, its best showing before sunrise.

12. Mon, Sep 209:08 AM

    Moon and Neptune close together

    They pass 4.2° apart in the sky.

13. Tue, Sep 21

    Apogee

    The Moon's farthest point from Earth on this orbit: 406,200 km.

14. Tue, Sep 217:25 AM

    Jupiter at opposition

    Opposite the Sun in the sky: up all night and at its brightest for the year.

15. Tue, Sep 2112:43 PM

    Uranus at opposition

    Opposite the Sun in the sky: up all night and at its brightest for the year.

16. Wed, Sep 2211:09 PM

    September equinox

    Day and night are nearly equal. Autumn begins in the northern hemisphere and spring in the southern.

17. Thu, Sep 2312:53 AM

    Jupiter, Moon, and Uranus gathered

    All within 6.5° of each other in the sky.

18. Thu, Sep 235:17 AM

    Full Moon Harvest Moon

    The whole disc is lit. The Moon rises around sunset and stays up all night.

19. Mon, Sep 277:03 AM

    Venus at its brightest

    Shines at magnitude -4.8, as bright as it gets this time around.

20. Thu, Sep 308:43 PM

    Saturn behind the Sun

    On the far side of the Sun and lost in its glare.

21. Thu, Sep 3011:52 PM

    Last Quarter

    Half of the disc is lit. The Moon rises around midnight and is up through the morning.

Times are local to America/New York. Each Moon is drawn as it looks at midday.