Last Quarter on

Moon phase on 10 August 2031 Sunday is Last Quarter, 22 days old Moon is in Taurus.

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Moon phase for

Lunar calendar 2031 | August 2031

Last Quarter phase
Last Quarter phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Last Quarter 45% illuminated

Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 45% and getting smaller. The 22 days old Moon is in ♉ Taurus.

* The exact date and time of this Last Quarter phase is on 10 August 2031 at 00:24 UTC.

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Moon phases for next 7 days

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Moon phase and lunation details

Moonrise and moonset

Moon rises at midnight and sets at noon. It is visible to the south in the morning.

Moon in ♉ Taurus

Moon is passing about ∠23° of ♉ Taurus tropical zodiac sector.

Apparent angular diameter ∠1813"

Lunar disc appears visually 4.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1813" and ∠1893".

Harvest Moon after 21 days

Next Full Moon is the Harvest Moon of September 2031 after 21 days on 1 September 2031 at 09:20.

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 390 / 1343

The Moon is 22 days old. Earth's natural satellite is moving through the last part of current synodic month. This is lunation 390 of Meeus index or 1343 from Brown series.

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Synodic month length 29.62 days

Length of current 390 lunation is 29 days, 14 hours and 52 minutes. It is 37 minutes longer than next lunation 391 length.

Lunation length longer than mean

Length of current synodic month is 2 hours and 8 minutes longer than the mean length of synodic month, but it is still 4 hours and 55 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠188.7°

This lunation true anomaly is ∠188.7°. At the beginning of next synodic month true anomaly will be ∠213.5°. 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

8 days after point of perigee on 2 August 2031 at 06:47 in ♑ Capricorn. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 4 days, until it get to the point of next apogee on 14 August 2031 at 21:37 in ♋ Cancer.

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Distance to Moon 395 442 km

Moon is 395 442 km (245 716 mi) away from Earth on this date. Moon moves farther next 4 days until apogee, when Earth-Moon distance will reach 405 946 km (252 243 mi).

Moon in descending node

Moon is in descending node in ♉ Taurus at 14:10 on this date, it crosses the ecliptic from North to South. Moon will follow the southern part of its orbit for the next 14 days to meet ascending node on 25 August 2031 at 01:21 in ♏ Scorpio.

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Draconic month

12 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the middle to the last part of it.

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Moon before northern standstill

10 days after previous South standstill on 30 July 2031 at 15:45 in ♐ Sagittarius, when Moon has reached southern declination of ∠-20.951°. Next 2 days the lunar orbit moves northward to face North declination of ∠20.868° in the next northern standstill on 12 August 2031 at 15:58 in ♊ Gemini.

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Syzygy in 7 days

After 7 days on 18 August 2031 at 04:32 in ♌ Leo, 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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