Waning Gibbous on

Moon phase on 31 January 2051 Tuesday is Waning Gibbous, 19 days old Moon is in Libra.

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Moon phase for

Lunar calendar 2051 | January 2051

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

Waning Gibbous 81% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 81% and getting smaller. The 19 days old Moon is in ♎ Libra.

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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 26 January 2051 at 21:20.

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 is entering ♎ Libra

Moon is passing first ∠3° of ♎ Libra tropical zodiac sector.

Apparent angular diameter ∠1768"

Lunar disc appears visually 9.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1947".

Wolf Moon before 4 days

Next Full Moon is the Snow Moon of February 2051 after 25 days on 25 February 2051 at 14:53.

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 631 / 1584

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 631 of Meeus index or 1584 from Brown series.

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Synodic month length 29.49 days

Length of current 631 lunation is 29 days, 11 hours and 43 minutes. It is 1 hour and 32 minutes longer than next lunation 632 length.

Lunation length shorter than mean

Length of current synodic month is 1 hour and 1 minute shorter than the mean length of synodic month, but it is still 5 hours and 8 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠313.4°

This lunation true anomaly is ∠313.4°. At the beginning of next synodic month true anomaly will be ∠334.7°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).

Moon in apogee

Moon is reaching point of apogee on this date at 19:46, this is 16 days after last perigee on 15 January 2051 at 18:23 in ♒ Aquarius. Lunar orbit is starting to get closer, while the Moon is moving inward the Earth for 12 days ahead, until it will get to the point of next perigee on 12 February 2051 at 18:54 in ♓ Pisces.

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Distance to Moon 405 173 km

This apogee Moon is 405 173 km (251 763 mi) away from Earth. It is 235 km farther than the mean apogee distance, but it is still 1 536 km closer than the farthest apogee of 21st century.

Moon before ascending node

11 days after its descending node on 20 January 2051 at 03:36 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 2 days, until it will cross the ecliptic from South to North in ascending node on 3 February 2051 at 07:49 in ♏ Scorpio.

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Draconic month

24 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the second to the final part of it.

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Moon before southern standstill

8 days after previous North standstill on 23 January 2051 at 08:46 in ♊ Gemini, when Moon has reached northern declination of ∠19.697°. Next 6 days the lunar orbit moves southward to face South declination of ∠-19.572° in the next southern standstill on 6 February 2051 at 23:17 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 10 days

After 10 days on 11 February 2051 at 06:41 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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