Waxing Gibbous on

Moon phase on 17 August 2021 Tuesday is Waxing Gibbous, 9 days young Moon is in Sagittarius.

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Moon phase for

Lunar calendar 2021 | August 2021

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

Waxing Gibbous 71% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 71% and growing larger. The 9 days young Moon is in ♐ Sagittarius.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after First Quarter

Previous main lunar phase is the First Quarter before 1 day on 15 August 2021 at 15:20.

Moonrise and moonset

Moon rises in the afternoon and sets after midnight to early morning. It is visible to the southeast in early evening and it is up for most of the night.

Moon in ♐ Sagittarius

Moon is passing about ∠19° of ♐ Sagittarius tropical zodiac sector.

Apparent angular diameter ∠1969"

Lunar disc appears visually 3.8% wider than solar disc. Moon and Sun apparent angular diameters are ∠1969" and ∠1896".

Sturgeon Moon after 5 days

Next Full Moon is the Sturgeon Moon of August 2021 after 5 days on 22 August 2021 at 12:02.

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 9 days young. Earth's natural satellite is moving from the first to the middle 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

The length of the lunation is 29 days, 11 hours and 2 minutes. It is 48 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 shorter than mean

The length of the current synodic month is 1 hour and 42 minutes shorter than the mean synodic month length. It is 4 hours and 27 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠264.3°

At the beginning of the lunation cycle the true anomaly is ∠264.3°. At the beginning of next synodic month the true anomaly is going to be ∠297.8°.

Moon at perigee

Moon is at perigee at 09:23. It is 15 days after previous apogee on 2 August 2021 at 07:35 in ♉ Taurus. Lunar orbit is going to widen while the Moon is moving away from the Earth over the next 12 days, until point of next apogee on 30 August 2021 at 02:22 in ♊ Gemini.

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Distance to Moon 369 127 km

This perigee Moon is 369 127 km (229 365 mi) away from Earth. It is 6 619 km closer than the mean perigee distance, but it is still 1 229 km further than the closest perigee of 21st century.

Moon after descending node

1 day after descending node on 16 August 2021 at 16:04 in ♐ Sagittarius. The Moon is located south of the ecliptic over the following 12 days, until the lunar orbit crosses from South to North in ascending node on 30 August 2021 at 05:13 in ♊ Gemini.

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Draconic month

14 days since the beginning of current draconic month in ♊ Gemini, the Moon is navigating from the second to the final part of the cycle.

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Moon before southern standstill

11 days since the previous standstill on 5 August 2021 at 16:46 in ♋ Cancer when the Moon has reached North declination of ∠25.685°, the lunar orbit is extending southward over the next day to face maximum declination of ∠-25.761° at the point of next southern standstill on 18 August 2021 at 22:24 in ♑ Capricorn.

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Syzygy in 5 days

In 5 days on 22 August 2021 at 12:02 in ♒ Aquarius the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon syzygy alignment.

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