Last Quarter on

Moon phase on 30 August 2021 Monday is Last Quarter, 22 days old Moon is in Gemini.

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Moon phase for

Lunar calendar 2021 | August 2021

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

Last Quarter 48% illuminated

Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 48% and getting smaller. The 22 days old Moon is in ♊ Gemini.

* The exact date and time of this Last Quarter phase is on 30 August 2021 at 07:13 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 ♊ Gemini

Moon is passing about ∠9° of ♊ Gemini tropical zodiac sector.

Apparent angular diameter ∠1768"

Lunar disc appears visually 7.2% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1901".

Harvest Moon after 21 days

Next Full Moon is the Harvest Moon of September 2021 after 21 days on 20 September 2021 at 23:55.

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 267 / 1220

The Moon is 22 days old. Earth's natural satellite is moving through the last part of current synodic month. This is lunation 267 of Meeus index or 1220 from Brown series.

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Synodic month length 29.46 days

Length of current 267 lunation is 29 days, 11 hours and 2 minutes. It is 48 minutes longer than next lunation 268 length.

Lunation length shorter than mean

Length of current synodic month is 1 hour and 42 minutes shorter than the mean length of synodic month, but it is still 4 hours and 27 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠264.3°

This lunation true anomaly is ∠264.3°. At the beginning of next synodic month true anomaly will be ∠297.8°. 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 02:22, this is 12 days after last perigee on 17 August 2021 at 09:23 in ♐ Sagittarius. Lunar orbit is starting to get closer, while the Moon is moving inward the Earth for 11 days ahead, until it will get to the point of next perigee on 11 September 2021 at 10:05 in ♏ Scorpio.

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Distance to Moon 404 100 km

This apogee Moon is 404 100 km (251 096 mi) away from Earth. This is the year's closest apogee of 2021. It is 1 308 km farther than the mean apogee distance, but it is still 49 km closer than the farthest apogee of 21st century.

Moon in ascending node

Moon is in ascending node in ♊ Gemini at 05:13 on this date, it crosses the ecliptic from South to North. Moon will follow the northern part of its orbit for the next 13 days to meet descending node on 12 September 2021 at 16:35 in ♏ Scorpio.

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New draconic month

At 05:13 on this date the Moon is completing its previous draconic month and is entering the new one.


Moon before northern standstill

11 days after previous South standstill on 18 August 2021 at 22:24 in ♑ Capricorn, when Moon has reached southern declination of ∠-25.761°. Next 2 days the lunar orbit moves northward to face North declination of ∠25.868° in the next northern standstill on 2 September 2021 at 00:23 in ♋ Cancer.

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Syzygy in 7 days

After 7 days on 7 September 2021 at 00:52 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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