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

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 perigee

Moon is reaching point of perigee on this date at 09:23, this is 15 days after last apogee on 2 August 2021 at 07:35 in ♉ Taurus. Lunar orbit is starting to get wider, while the Moon is moving outward the Earth for 12 days ahead, until it will get to the 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 farther than the closest perigee of 21st century.

Moon after descending node

1 day after its descending node on 16 August 2021 at 16:04 in ♐ Sagittarius, the Moon is following the southern part of its orbit for the next 12 days, until it will cross the ecliptic from South to North in ascending node on 30 August 2021 at 05:13 in ♊ Gemini.

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Draconic month

14 days after beginning of current draconic month in ♊ Gemini, the Moon is moving from the second to the final part of it.

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Moon before southern standstill

11 days after previous North standstill on 5 August 2021 at 16:46 in ♋ Cancer, when Moon has reached northern declination of ∠25.685°. Next day the lunar orbit moves southward to face South declination of ∠-25.761° in the next southern standstill on 18 August 2021 at 22:24 in ♑ Capricorn.

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Syzygy in 5 days

After 5 days on 22 August 2021 at 12:02 in ♒ Aquarius, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

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