Waning Crescent on

Moon phase on 10 September 2031 Wednesday is Waning Crescent, 23 days old Moon is in Cancer.

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Moon phase for

Lunar calendar 2031 | September 2031

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

Waning Crescent 33% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 33% and getting smaller. The 23 days old Moon is in ♋ Cancer.

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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 8 September 2031 at 16:14.

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 ♋ Cancer

Moon is passing about ∠8° of ♋ Cancer tropical zodiac sector.

Apparent angular diameter ∠1771"

Lunar disc appears visually 7.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1771" and ∠1906".

Harvest Moon after 20 days

Next Full Moon is the Harvest Moon of September 2031 after 20 days on 30 September 2031 at 18:58.

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 391 / 1344

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 391 of Meeus index or 1344 from Brown series.

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Synodic month length 29.59 days

Length of current 391 lunation is 29 days, 14 hours and 15 minutes. It is 41 minutes longer than next lunation 392 length.

Lunation length longer than mean

Length of current synodic month is 1 hour and 31 minutes longer than the mean length of synodic month, but it is still 5 hours and 32 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠213.5°

This lunation true anomaly is ∠213.5°. At the beginning of next synodic month true anomaly will be ∠245.2°. 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 before apogee

10 days after point of perigee on 30 August 2031 at 12:53 in ♒ Aquarius. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next day, until it get to the point of next apogee on 11 September 2031 at 11:54 in ♋ Cancer.

Previous perigeeNext apogee

Distance to Moon 404 759 km

Moon is 404 759 km (251 506 mi) away from Earth on this date. Moon moves farther next day until apogee, when Earth-Moon distance will reach 405 006 km (251 659 mi).

Moon after descending node

3 days after its descending node on 6 September 2031 at 16:34 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 10 days, until it will cross the ecliptic from South to North in ascending node on 21 September 2031 at 02:24 in ♏ Scorpio.

Previous nodeNext node

Draconic month

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

PreviousCurrent draconic monthNext

Moon after northern standstill

1 day after previous North standstill on 8 September 2031 at 23:27 in ♊ Gemini, when Moon has reached northern declination of ∠20.623°. Next 12 days the lunar orbit moves southward to face South declination of ∠-20.501° in the next southern standstill on 23 September 2031 at 05:46 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 6 days

After 6 days on 16 September 2031 at 18:47 in ♍ Virgo, 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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