Waning Crescent on

Moon phase on 21 January 2031 Tuesday is Waning Crescent, 27 days old Moon is in Capricorn.

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Moon phase for

Lunar calendar 2031 | January 2031

Waning Crescent phase
Waning Crescent phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Waning Crescent 4% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 4% and getting smaller. The 27 days old Moon is in ♑ Capricorn.

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Moon phases for next 7 days

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Moon phase and lunation details

4 days after Last Quarter

Previous main lunar phase is the Last Quarter before 4 days on 16 January 2031 at 12:47.

Moonrise and moonset

Moon rises after midnight to early morning and sets in the afternoon. It is visible in the early morning low to the east.

Moon in ♑ Capricorn

Moon is passing about ∠8° of ♑ Capricorn tropical zodiac sector.

Apparent angular diameter ∠1971"

Lunar disc appears visually 1.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1971" and ∠1950".

Snow Moon after 17 days

Next Full Moon is the Snow Moon of February 2031 after 17 days on 7 February 2031 at 12:46.

Upcoming main Moon phases

Neap tide

There is low ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at big angle, so their combined tidal force is weak.

Lunation 383 / 1336

The Moon is 27 days old. Earth's natural satellite is moving from the second to the final part of current synodic month. This is lunation 383 of Meeus index or 1336 from Brown series.

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Synodic month length 29.46 days

Length of current 383 lunation is 29 days, 10 hours and 59 minutes. It is 19 minutes shorter than next lunation 384 length.

Lunation length shorter than mean

Length of current synodic month is 1 hour and 45 minutes shorter than the mean length of synodic month, but it is still 4 hours and 24 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠5.3°

This New Moon true anomaly is ∠5.3°. At beginning of next synodic month true anomaly will be ∠21.6°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon in perigee

Moon is reaching point of perigee on this date at 21:41, this is 15 days after last apogee on 6 January 2031 at 11:00 in ♊ Gemini. Lunar orbit is starting to get wider, while the Moon is moving outward the Earth for 12 days ahead, until it will get to the point of next apogee on 2 February 2031 at 23:45 in ♊ Gemini.

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Distance to Moon 359 637 km

This perigee Moon is 359 637 km (223 468 mi) away from Earth. It is 2 871 km closer than the mean perigee distance, but it is still 10 719 km farther than the closest perigee of 21st century.

Moon after ascending node

2 days after its ascending node on 19 January 2031 at 08:51 in ♐ Sagittarius, the Moon is following the northern part of its orbit for the next 10 days, until it will cross the ecliptic from North to South in descending node on 1 February 2031 at 09:25 in ♊ Gemini.

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Draconic month

2 days after beginning of current draconic month in ♐ Sagittarius, the Moon is moving from the beginning to the first part of it.

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Moon after southern standstill

1 day after previous South standstill on 20 January 2031 at 05:10 in ♐ Sagittarius, when Moon has reached southern declination of ∠-21.824°. Next 12 days the lunar orbit moves northward to face North declination of ∠21.745° in the next northern standstill on 2 February 2031 at 12:52 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 1 day

After 1 day on 23 January 2031 at 04:31 in ♒ Aquarius, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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