Moon calendar: September 1990
The phases of the Moon are the changes in the illuminated part of the Moon visible from Earth over a cycle of about 29.5 days. In astrology, this cycle is measured by the angle between the Sun and the Moon. The new moon is the moment of conjunction, when the Sun and Moon are at the same degree; the full moon is the opposition, when the two are at opposite ends of the zodiac. Between these two points lie the phases in which the Moon waxes and wanes. Astrologers usually divide the cycle into eight phases, each corresponding to a 45-degree range of the Sun-Moon angle.
The Moon's sign changes and the void-of-course Moon
| Sign | Enters | Void of course begins | Leaves |
|---|---|---|---|
| Capricorn | 30 August 13:22 | 1 September 07:24 | 1 September 23:50 |
| Aquarius | 1 September 23:50 | 3 September 23:20 | 4 September 07:05 |
| Pisces | 4 September 07:05 | 5 September 16:18 | 6 September 11:22 |
| Aries | 6 September 11:22 | 7 September 19:13 | 8 September 13:55 |
| Taurus | 8 September 13:55 | 9 September 21:18 | 10 September 16:04 |
| Gemini | 10 September 16:04 | 11 September 23:53 | 12 September 18:52 |
| Cancer | 12 September 18:52 | 14 September 07:18 | 14 September 22:51 |
| Leo | 14 September 22:51 | 16 September 02:40 | 17 September 04:18 |
| Virgo | 17 September 04:18 | 19 September 03:45 | 19 September 11:33 |
| Libra | 19 September 11:33 | 20 September 23:02 | 21 September 21:05 |
| Scorpio | 21 September 21:05 | 23 September 12:32 | 24 September 08:51 |
| Sagittarius | 24 September 08:51 | 26 September 08:18 | 26 September 21:36 |
| Capricorn | 26 September 21:36 | 29 September 02:50 | 29 September 08:53 |
| Aquarius | 29 September 08:53 | 30 September 14:27 | 1 October 15:42 |
Times are in Turkey time. The void-of-course Moon is the time from the Moon's last major aspect in its sign until it enters the next sign. For end times, durations and the daily chart, see the void-of-course Moon calendar.