Waning Crescent on

Moon phase on 17 January 2031 Friday is Waning Crescent, 23 days old Moon is in Scorpio.

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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 39% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 39% and getting smaller. The 23 days old Moon is in ♏ Scorpio.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after Last Quarter

Previous main lunar phase is the Last Quarter before 1 day 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 ♏ Scorpio

Moon is passing about ∠9° of ♏ Scorpio tropical zodiac sector.

Apparent angular diameter ∠1941"

Lunar disc appears visually 0.5% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1941" and ∠1950".

Snow Moon after 21 days

Next Full Moon is the Snow Moon of February 2031 after 21 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 23 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 before perigee

11 days after point of apogee on 6 January 2031 at 11:00 in ♊ Gemini. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 4 days, until it get to the point of next perigee on 21 January 2031 at 21:41 in ♑ Capricorn.

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Distance to Moon 369 340 km

Moon is 369 340 km (229 497 mi) away from Earth on this date. Moon moves closer next 4 days until perigee, when Earth-Moon distance will reach 359 637 km (223 468 mi).

Moon before ascending node

12 days after its descending node on 5 January 2031 at 06:37 in ♊ Gemini, the Moon is following the southern part of its orbit for the next day, until it will cross the ecliptic from South to North in ascending node on 19 January 2031 at 08:51 in ♐ Sagittarius.

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Draconic month

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

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Moon before southern standstill

11 days after previous North standstill on 6 January 2031 at 05:22 in ♊ Gemini, when Moon has reached northern declination of ∠21.889°. Next 2 days the lunar orbit moves southward to face South declination of ∠-21.824° in the next southern standstill on 20 January 2031 at 05:10 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 5 days

After 5 days 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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