Moon calendar, January 2023
Full Moon on 6 January at 23:07, in Cancer. New Moon on 21 January at 20:53, in Aquarius.
The Moon changes sign 13 times this month and is void of course before each change.
| Date | Moon sign | Phase | Void of course |
|---|---|---|---|
| Sun 1 | Taurus | ||
| Mon 2 | Taurus | from 22:16 | |
| Tue 3 | Taurus, enters Gemini at 02:44 | until 02:44 | |
| Wed 4 | Gemini | ||
| Thu 5 | Gemini, enters Cancer at 14:14 | 00:07 to 14:14 | |
| Fri 6 | Cancer | Full Moon at 23:07 | |
| Sat 7 | Cancer | from 22:22 | |
| Sun 8 | Cancer, enters Leo at 02:40 | until 02:40 | |
| Mon 9 | Leo | ||
| Tue 10 | Leo, enters Virgo at 15:15 | 01:52 to 15:15 | |
| Wed 11 | Virgo | ||
| Thu 12 | Virgo | from 23:06 | |
| Fri 13 | Virgo, enters Libra at 02:56 | until 02:56 | |
| Sat 14 | Libra | ||
| Sun 15 | Libra, enters Scorpio at 12:08 | Last quarter at 02:10 | 08:39 to 12:08 |
| Mon 16 | Scorpio | ||
| Tue 17 | Scorpio, enters Sagittarius at 17:32 | 14:27 to 17:32 | |
| Wed 18 | Sagittarius | ||
| Thu 19 | Sagittarius, enters Capricorn at 19:11 | 10:08 to 19:11 | |
| Fri 20 | Capricorn | ||
| Sat 21 | Capricorn, enters Aquarius at 18:28 | New Moon at 20:53 | 15:52 to 18:28 |
| Sun 22 | Aquarius | ||
| Mon 23 | Aquarius, enters Pisces at 17:35 | 10:19 to 17:35 | |
| Tue 24 | Pisces | ||
| Wed 25 | Pisces, enters Aries at 18:47 | 16:11 to 18:47 | |
| Thu 26 | Aries | ||
| Fri 27 | Aries, enters Taurus at 23:42 | 21:01 to 23:42 | |
| Sat 28 | Taurus | First quarter at 15:18 | |
| Sun 29 | Taurus | ||
| Mon 30 | Taurus, enters Gemini at 08:34 | 05:51 to 08:34 | |
| Tue 31 | Gemini |
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.