Moon calendar, September 2023
New Moon on 15 September at 01:39, in Virgo. Full Moon on 29 September at 09:57, in Aries.
The Moon changes sign 13 times this month and is void of course before each change.
| Date | Moon sign | Phase | Void of course |
|---|---|---|---|
| Fri 1 | Pisces, enters Aries at 13:24 | 10:35 to 13:24 | |
| Sat 2 | Aries | ||
| Sun 3 | Aries, enters Taurus at 14:59 | 11:56 to 14:59 | |
| Mon 4 | Taurus | ||
| Tue 5 | Taurus, enters Gemini at 20:06 | 16:45 to 20:06 | |
| Wed 6 | Gemini | Last quarter at 22:21 | |
| Thu 7 | Gemini | from 22:21 | |
| Fri 8 | Gemini, enters Cancer at 04:59 | until 04:59 | |
| Sat 9 | Cancer | ||
| Sun 10 | Cancer, enters Leo at 16:36 | 12:47 to 16:36 | |
| Mon 11 | Leo | ||
| Tue 12 | Leo | from 15:05 | |
| Wed 13 | Leo, enters Virgo at 05:18 | until 05:18 | |
| Thu 14 | Virgo | ||
| Fri 15 | Virgo, enters Libra at 17:44 | New Moon at 01:39 | 13:49 to 17:44 |
| Sat 16 | Libra | ||
| Sun 17 | Libra | ||
| Mon 18 | Libra, enters Scorpio at 04:58 | 01:06 to 04:58 | |
| Tue 19 | Scorpio | ||
| Wed 20 | Scorpio, enters Sagittarius at 14:05 | 10:21 to 14:05 | |
| Thu 21 | Sagittarius | ||
| Fri 22 | Sagittarius, enters Capricorn at 20:20 | First quarter at 19:31 | 19:31 to 20:20 |
| Sat 23 | Capricorn | ||
| Sun 24 | Capricorn, enters Aquarius at 23:29 | 20:05 to 23:29 | |
| Mon 25 | Aquarius | ||
| Tue 26 | Aquarius | from 12:38 | |
| Wed 27 | Aquarius, enters Pisces at 00:18 | until 00:18 | |
| Thu 28 | Pisces | from 20:57 | |
| Fri 29 | Pisces, enters Aries at 00:17 | Full Moon at 09:57 | until 00:17 |
| Sat 30 | Aries | from 21:49 |
Tropical zodiac · geocentric, apparent positions · Swiss Ephemeris, checked against NASA JPL DE440 · void of course: last exact conjunction, sextile, square, trine or opposition to the Sun and Mercury to Pluto · times in UTC
Go deeper: phases, signs and void of course
Phases. New Moon is the moment the Moon passes the Sun in longitude; first quarter, full and last quarter are 90°, 180° and 270° past it. Each happens at one instant worldwide; only the clock time differs by place.
Signs. The Moon crosses a sign in about two and a half days. These are tropical signs; in a sidereal (Vedic) zodiac the Moon reaches each sign about 24° later, nearly two days after the times shown.
Void of course. From the Moon’s last exact major aspect in a sign until it enters the next sign. William Lilly, in the 17th century, counted only the Sun and the five visible planets; most modern calendars add Uranus, Neptune and Pluto, so their void periods are often shorter. Switch between the two above.