Waning Gibbous on

Moon phase on 23 October 2021 Saturday is Waning Gibbous, 17 days old Moon is in Gemini.

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Moon phase for

Lunar calendar 2021 | October 2021

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

Waning Gibbous 93% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 93% and getting smaller. The 17 days old Moon is in ♊ Gemini.

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Moon phases for next 7 days

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Moon phase and lunation details

2 days after Full Moon

Previous main lunar phase is the Full Moon before 2 days on 20 October 2021 at 14:57.

Moonrise and moonset

Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.

Moon is entering ♊ Gemini

Moon is passing first ∠2° of ♊ Gemini tropical zodiac sector.

Apparent angular diameter ∠1769"

Lunar disc appears visually 8.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1769" and ∠1929".

Hunter Moon before 2 days

Next Full Moon is the Beaver Moon of November 2021 after 26 days on 19 November 2021 at 08:58.

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 269 / 1222

The Moon is 17 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 269 of Meeus index or 1222 from Brown series.

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Synodic month length 29.42 days

The length of the lunation is 29 days, 10 hours and 9 minutes. This is the year's shortest synodic month of 2021. It is 19 minutes shorter 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 shorter than mean

The length of the current synodic month is 2 hours and 35 minutes shorter than the mean synodic month length. It is 3 hours and 34 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠323.3°

At the beginning of the lunation cycle the true anomaly is ∠323.3°. At the beginning of next synodic month the true anomaly is going to be ∠342.3°.

Moon before perigee

14 days after point of perigee on 8 October 2021 at 17:28 in ♏ Scorpio. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next day, until the Moon reaches the point of next apogee on 24 October 2021 at 15:30 in ♊ Gemini.

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Distance to Moon 405 221 km

The Moon is 405 221 km (251 793 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 405 616 km (252 038 mi).

Moon in ascending node

Moon is in ascending node in ♊ Gemini at 11:47 crossing the ecliptic from South to North to meet descending node 13 days later on 6 November 2021 at 03:38 in ♐ Sagittarius.

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New draconic month

At 11:47 the Moon completes the previous draconic month and enters the new one.

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Moon before northern standstill

11 days since the previous standstill on 12 October 2021 at 09:09 in ♑ Capricorn when the Moon has reached South declination of ∠-26.204°, the lunar orbit is extending northward over the next 3 days to face maximum declination of ∠26.291° at the point of next northern standstill on 26 October 2021 at 16:04 in ♋ Cancer.

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Syzygy in 12 days

In 12 days on 4 November 2021 at 21:15 in ♏ Scorpio 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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