Moon calendar: October 1991
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 |
|---|---|---|---|
| Cancer | 30 September 13:58 | 2 October 00:05 | 2 October 16:58 |
| Leo | 2 October 16:58 | 4 October 17:13 | 4 October 19:44 |
| Virgo | 4 October 19:44 | 6 October 03:48 | 6 October 23:00 |
| Libra | 6 October 23:00 | 8 October 18:10 | 9 October 03:59 |
| Scorpio | 9 October 03:59 | 10 October 15:02 | 11 October 11:57 |
| Sagittarius | 11 October 11:57 | 13 October 18:59 | 13 October 23:10 |
| Capricorn | 13 October 23:10 | 16 October 11:32 | 16 October 12:04 |
| Aquarius | 16 October 12:04 | 18 October 13:16 | 18 October 23:52 |
| Pisces | 18 October 23:52 | 20 October 12:51 | 21 October 08:33 |
| Aries | 21 October 08:33 | 23 October 13:08 | 23 October 13:55 |
| Taurus | 23 October 13:55 | 24 October 23:25 | 25 October 17:08 |
| Gemini | 25 October 17:08 | 26 October 20:55 | 27 October 19:36 |
| Cancer | 27 October 19:36 | 29 October 07:03 | 29 October 22:20 |
| Leo | 29 October 22:20 | 31 October 16:16 | 1 November 01:46 |
Times are in your time zone: Turkey time (UTC+3). 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.