Waning Crescent on

Moon phase on 15 September 2031 Monday is Waning Crescent, 28 days old Moon is in Virgo.

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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 2% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 2% and getting smaller. The 28 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

6 days after Last Quarter

Previous main lunar phase is the Last Quarter before 6 days 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 ♍ Virgo

Moon is passing about ∠8° of ♍ Virgo tropical zodiac sector.

Apparent angular diameter ∠1797"

Lunar disc appears visually 6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1797" and ∠1908".

Harvest Moon after 15 days

Next Full Moon is the Harvest Moon of September 2031 after 15 days on 30 September 2031 at 18:58.

Upcoming main Moon phases

Moderate tide

There is medium ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at very acute angle, so their combined tidal force is moderate.

Lunation 391 / 1344

The Moon is 28 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 after apogee

4 days after point of apogee on 11 September 2031 at 11:54 in ♋ Cancer. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 11 days, until it get to the point of next perigee on 27 September 2031 at 07:09 in ♒ Aquarius.

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Distance to Moon 398 851 km

Moon is 398 851 km (247 835 mi) away from Earth on this date. Moon moves closer next 11 days until perigee, when Earth-Moon distance will reach 366 841 km (227 944 mi).

Moon before ascending node

8 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 5 days, until it will cross the ecliptic from South to North in ascending node on 21 September 2031 at 02:24 in ♏ Scorpio.

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Draconic month

21 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 after northern standstill

6 days after previous North standstill on 8 September 2031 at 23:27 in ♊ Gemini, when Moon has reached northern declination of ∠20.623°. Next 7 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.

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Syzygy in 1 day

After 1 day 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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