September 1981

1. Sun
2. Mon
3. Tue
4. Wed
5. Thu
6. Fri
7. Sat
10. 1 10%
11. 2 16%
12. 3 24%
13. 4 33%
14. 5 42%
15. 6 First qtr
16. 7 61%
17. 8 70%
18. 9 79%
19. 10 86%
20. 11 93%
21. 12 97%
22. 13 Full
23. 14 99%
24. 15 97%
25. 16 91%
26. 17 84%
27. 18 74%
28. 19 63%
29. 20 Last qtr
30. 21 41%
31. 22 30%
32. 23 21%
33. 24 13%
34. 25 7%
35. 26 2%
36. 27 0%
37. 28 New
38. 29 2%
39. 30 6%

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

Events in September 1981

1. Tue, Sep 12:01 AM

   Jupiter, Moon, Saturn, and Venus gathered

   All within 7.9° of each other in the sky.

2. Tue, Sep 15:29 AM

   Moon and Jupiter close together

   They pass 3.7° apart in the sky.

3. Tue, Sep 112:11 PM

   Jupiter, Moon, and Venus gathered

   All within 5.1° of each other in the sky.

4. Tue, Sep 13:28 PM

   Moon and Venus close together

   They pass 5.0° apart in the sky.

5. Fri, Sep 410:16 PM

   Moon and Uranus close together

   They pass 4.5° apart in the sky.

6. Sat, Sep 5

   Apogee

   The Moon's farthest point from Earth on this orbit: 404,400 km.

7. Sun, Sep 69:26 AM

   First Quarter

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

8. Mon, Sep 71:59 AM

   Moon and Neptune close together

   They pass 1.9° apart in the sky.

9. Wed, Sep 98:18 AM

   Mercury and Saturn close together

   They pass 3.1° apart in the sky.

10. Wed, Sep 94:17 PM

    Jupiter, Mercury, and Saturn gathered

    All within 3.9° of each other in the sky.

11. Sat, Sep 122:46 PM

    Mercury and Jupiter close together

    They pass 2.5° apart in the sky.

12. Sun, Sep 1311:09 PM

    Full Moon Harvest Moon

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

13. Wed, Sep 16

    Perigee

    The Moon's closest point to Earth on this orbit: 365,600 km.

14. Sun, Sep 203:48 PM

    Last Quarter

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

15. Tue, Sep 2211:04 PM

    September equinox

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

16. Wed, Sep 2312:24 PM

    Mercury at greatest elongation

    26° from the Sun in the evening sky, its best showing after sunset.

17. Thu, Sep 241:00 AM

    Moon and Mars close together

    They pass 0.0° apart in the sky.

18. Mon, Sep 2812:07 AM

    New Moon

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

19. Mon, Sep 281:33 PM

    Moon and Saturn close together

    They pass 2.6° apart in the sky.

20. Mon, Sep 284:06 PM

    Jupiter, Moon, and Saturn gathered

    All within 5.6° of each other in the sky.

21. Tue, Sep 2912:23 AM

    Moon and Jupiter close together

    They pass 3.8° apart in the sky.

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