Waning Gibbous on

Moon phase on 13 January 2031 Monday is Waning Gibbous, 19 days old Moon is in Virgo.

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Moon phase for

Lunar calendar 2031 | January 2031

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

Waning Gibbous 80% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 80% and getting smaller. The 19 days old Moon is in ♍ Virgo.

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Moon phases for next 7 days

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Moon phase and lunation details

4 days after Full Moon

Previous main lunar phase is the Full Moon before 4 days on 8 January 2031 at 18:26.

Moonrise and moonset

Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.

Moon in ♍ Virgo

Moon is passing about ∠16° of ♍ Virgo tropical zodiac sector.

Apparent angular diameter ∠1852"

Lunar disc appears visually 5.2% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1852" and ∠1951".

Wolf Moon before 4 days

Next Full Moon is the Snow Moon of February 2031 after 25 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 19 days old. Earth's natural satellite is moving from the middle to the last 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

The length of the lunation is 29 days, 10 hours and 59 minutes. It is 19 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length shorter than mean

The length of the current synodic month is 1 hour and 45 minutes shorter than the mean synodic month length. It is 4 hours and 24 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠5.3°

At the beginning of the lunation cycle the true anomaly is ∠5.3°. At the beginning of next synodic month the true anomaly is going to be ∠21.6°.

Moon after apogee

7 days after point of apogee on 6 January 2031 at 11:00 in ♊ Gemini. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 8 days, until the Moon reaches the point of next perigee on 21 January 2031 at 21:41 in ♑ Capricorn.

Previous apogeeNext perigee

Distance to Moon 387 081 km

The Moon is 387 081 km (240 521 mi) away from Earth and getting closer over the next 8 days until the point perigee when Earth-Moon distance is going to be 359 637 km (223 468 mi).

Moon before ascending node

8 days after descending node on 5 January 2031 at 06:37 in ♊ Gemini. The Moon is located south of the ecliptic over the following 5 days, until the lunar orbit crosses from South to North in ascending node on 19 January 2031 at 08:51 in ♐ Sagittarius.

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Draconic month

21 days since the beginning of current draconic month in ♐ Sagittarius, the Moon is navigating from the second to the final part of the cycle.

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Moon before southern standstill

7 days since the previous standstill on 6 January 2031 at 05:22 in ♊ Gemini when the Moon has reached North declination of ∠21.889°, the lunar orbit is extending southward over the next 6 days to face maximum declination of ∠-21.824° at the point of next southern standstill on 20 January 2031 at 05:10 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 9 days

In 9 days on 23 January 2031 at 04:31 in ♒ Aquarius the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.

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