September 2031

1. Sun
2. Mon
3. Tue
4. Wed
5. Thu
6. Fri
7. Sat
9. 1 Full
10. 2 98%
11. 3 93%
12. 4 86%
13. 5 78%
14. 6 69%
15. 7 60%
16. 8 Last qtr
17. 9 41%
18. 10 32%
19. 11 23%
20. 12 16%
21. 13 9%
22. 14 5%
23. 15 1%
24. 16 New
25. 17 1%
26. 18 4%
27. 19 9%
28. 20 16%
29. 21 25%
30. 22 35%
31. 23 First qtr
32. 24 57%
33. 25 68%
34. 26 78%
35. 27 87%
36. 28 94%
37. 29 98%
38. 30 Full

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

Events in September 2031

1. Mon, Sep 15:21 AM

   Full Moon Corn Moon

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

2. Wed, Sep 36:16 PM

   Moon and Neptune close together

   They pass 4.6° apart in the sky.

3. Mon, Sep 812:14 PM

   Last Quarter

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

4. Tue, Sep 91:24 AM

   Moon and Saturn close together

   They pass 1.1° apart in the sky.

5. Tue, Sep 910:42 AM

   Moon and Uranus close together

   They pass 3.1° apart in the sky.

6. Tue, Sep 910:50 AM

   Moon, Saturn, and Uranus gathered

   All within 4.9° of each other in the sky.

7. Thu, Sep 11

   Apogee

   The Moon's farthest point from Earth on this orbit: 405,000 km.

8. Sat, Sep 136:31 AM

   Moon and Venus close together

   They pass 0.4° apart in the sky.

9. Sun, Sep 141:46 PM

   Venus at its brightest

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

10. Tue, Sep 162:47 PM

    New Moon

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

11. Mon, Sep 2210:42 PM

    Jupiter, Mars, and Moon gathered

    All within 4.4° of each other in the sky.

12. Mon, Sep 2211:22 PM

    Moon and Mars close together

    They pass 4.5° apart in the sky.

13. Tue, Sep 231:15 AM

    September equinox

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

14. Tue, Sep 235:02 AM

    Moon and Jupiter close together

    They pass 2.5° apart in the sky.

15. Tue, Sep 239:12 PM

    Mercury behind the Sun

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

16. Tue, Sep 239:20 PM

    First Quarter

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

17. Sat, Sep 27

    Perigee

    The Moon's closest point to Earth on this orbit: 366,800 km.

18. Sun, Sep 287:43 PM

    Mars and Jupiter close together

    They pass 2.2° apart in the sky.

19. Tue, Sep 302:58 PM

    Full Moon Harvest MoonBlue Moon

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

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