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

The length of the lunation is 29 days, 14 hours and 52 minutes. It is 37 minutes longer than the next lunation's length. The lengths of the following synodic months are going to decreasing with the true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).

Lunation length longer than mean

The length of the current synodic month is 2 hours and 8 minutes longer than the mean synodic month length. It is 4 hours and 55 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit position on

True anomaly ∠188.7°

At the beginning of the lunation cycle the true anomaly is ∠188.7°. At the beginning of next synodic month the true anomaly is going to be ∠213.5°.

Moon before perigee

8 days after point of perigee on 2 August 2031 at 06:47 in ♑ Capricorn. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 4 days, until the Moon reaches the point of next apogee on 14 August 2031 at 21:37 in ♋ Cancer.

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Distance to Moon 395 442 km

The Moon is 395 442 km (245 716 mi) away from Earth and getting further over the next 4 days until the point apogee when Earth-Moon distance is going to be 405 946 km (252 243 mi).

Moon in descending node

Moon is in descending node in ♉ Taurus at 14:10 crossing the ecliptic from North to South to meet ascending node 14 days later on 25 August 2031 at 01:21 in ♏ Scorpio.

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Draconic month

12 days since the beginning of current draconic month in ♏ Scorpio, the Moon is navigating from the middle to the last part of the cycle.

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Moon before northern standstill

10 days since the previous standstill on 30 July 2031 at 15:45 in ♐ Sagittarius when the Moon has reached South declination of ∠-20.951°, the lunar orbit is extending northward over the next 2 days to face maximum declination of ∠20.868° at the point of next northern standstill on 12 August 2031 at 15:58 in ♊ Gemini.

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Syzygy in 7 days

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