December 1989

1. Sun
2. Mon
3. Tue
4. Wed
5. Thu
6. Fri
7. Sat
13. 1 10%
14. 2 17%
15. 3 26%
16. 4 36%
17. 5 First qtr
18. 6 57%
19. 7 68%
20. 8 79%
21. 9 87%
22. 10 94%
23. 11 98%
24. 12 Full
25. 13 98%
26. 14 94%
27. 15 88%
28. 16 81%
29. 17 72%
30. 18 63%
31. 19 Last qtr
32. 20 43%
33. 21 34%
34. 22 26%
35. 23 18%
36. 24 11%
37. 25 6%
38. 26 2%
39. 27 New
40. 28 0%
41. 29 3%
42. 30 7%
43. 31 13%

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

Events in December 1989

1. Fri, Dec 112:28 AM

   Moon and Neptune close together

   They pass 4.0° apart in the sky.

2. Fri, Dec 112:59 AM

   Moon, Neptune, and Saturn gathered

   All within 4.0° of each other in the sky.

3. Fri, Dec 12:48 AM

   Moon and Saturn close together

   They pass 3.4° apart in the sky.

4. Sat, Dec 22:28 AM

   Moon and Venus close together

   They pass 0.8° apart in the sky.

5. Tue, Dec 58:26 PM

   First Quarter

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

6. Sun, Dec 109:12 AM

   Mercury and Uranus close together

   They pass 2.0° apart in the sky.

7. Sun, Dec 10

   Perigee

   The Moon's closest point to Earth on this orbit: 361,300 km.

8. Tue, Dec 1211:30 AM

   Full Moon Cold Moon

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

9. Wed, Dec 133:27 PM

   Moon and Jupiter close together

   They pass 3.5° apart in the sky.

10. Fri, Dec 1512:08 AM

    Mercury, Neptune, and Uranus gathered

    All within 6.7° of each other in the sky.

11. Fri, Dec 153:38 AM

    Mercury and Neptune close together

    They pass 3.1° apart in the sky.

12. Fri, Dec 1512:13 PM

    Mercury, Neptune, and Saturn gathered

    All within 3.1° of each other in the sky.

13. Sat, Dec 1610:24 PM

    Mercury and Saturn close together

    They pass 2.5° apart in the sky.

14. Sun, Dec 174:22 AM

    Venus at its brightest

    Shines at magnitude -4.9, as bright as it gets this time around.

15. Tue, Dec 196:55 PM

    Last Quarter

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

16. Thu, Dec 214:22 PM

    December solstice

    The shortest day in the northern hemisphere and the longest in the southern.

17. Fri, Dec 22

    Apogee

    The Moon's farthest point from Earth on this orbit: 405,200 km.

18. Sat, Dec 232:52 AM

    Mercury at greatest elongation

    20° from the Sun in the evening sky, its best showing after sunset.

19. Mon, Dec 259:52 AM

    Moon and Mars close together

    They pass 4.9° apart in the sky.

20. Wed, Dec 271:11 AM

    Uranus behind the Sun

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

21. Wed, Dec 279:04 AM

    Jupiter at opposition

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

22. Wed, Dec 278:43 PM

    Moon and Uranus close together

    They pass 3.1° apart in the sky.

23. Wed, Dec 2710:20 PM

    New Moon

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

24. Thu, Dec 287:49 AM

    Moon, Neptune, and Uranus gathered

    All within 6.4° of each other in the sky.

25. Thu, Dec 288:48 AM

    Moon and Neptune close together

    They pass 3.8° apart in the sky.

26. Thu, Dec 2810:50 AM

    Moon, Neptune, and Saturn gathered

    All within 3.9° of each other in the sky.

27. Thu, Dec 283:05 PM

    Moon and Saturn close together

    They pass 3.0° apart in the sky.

28. Fri, Dec 2910:43 AM

    Moon and Mercury close together

    They pass 1.7° apart in the sky.

29. Sat, Dec 306:25 AM

    Moon and Venus close together

    They pass 2.4° apart in the sky.

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