First Quarter on

Moon phase on 14 September 2021 Tuesday is First Quarter, 8 days young Moon is in Capricorn.

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Moon phase for

Lunar calendar 2021 | September 2021

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

First Quarter 57% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 57% and growing larger. The 8 days young Moon is in ♑ Capricorn.

* The exact date and time of this First Quarter phase is on 13 September 2021 at 20:39 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 noon and sets at midnight. It is visible high in the southern sky in early evening.

Moon is entering ♑ Capricorn

Moon is passing first ∠0° of ♑ Capricorn tropical zodiac sector.

Apparent angular diameter ∠1964"

Lunar disc appears visually 2.9% wider than solar disc. Moon and Sun apparent angular diameters are ∠1964" and ∠1908".

Harvest Moon after 6 days

Next Full Moon is the Harvest Moon of September 2021 after 6 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 268 / 1221

The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 268 of Meeus index or 1221 from Brown series.

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Synodic month length 29.43 days

Length of current 268 lunation is 29 days, 10 hours and 14 minutes. It is 5 minutes longer than next lunation 269 length.

Lunation length shorter than mean

Length of current synodic month is 2 hours and 30 minutes shorter than the mean length of synodic month, but it is still 3 hours and 39 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠297.8°

This lunation true anomaly is ∠297.8°. At the beginning of next synodic month true anomaly will be ∠323.3°. 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 after perigee

3 days after point of perigee on 11 September 2021 at 10:05 in ♏ Scorpio. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 12 days, until it get to the point of next apogee on 26 September 2021 at 21:44 in ♊ Gemini.

Previous perigeeNext apogee

Distance to Moon 364 972 km

Moon is 364 972 km (226 783 mi) away from Earth on this date. Moon moves farther next 12 days until apogee, when Earth-Moon distance will reach 404 641 km (251 432 mi).

Moon after descending node

1 day after its descending node on 12 September 2021 at 16:35 in ♏ Scorpio, the Moon is following the southern part of its orbit for the next 11 days, until it will cross the ecliptic from South to North in ascending node on 26 September 2021 at 07:33 in ♊ Gemini.

Previous nodeNext node

Draconic month

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

PreviousCurrent draconic monthNext

Moon before southern standstill

12 days after previous North standstill on 2 September 2021 at 00:23 in ♋ Cancer, when Moon has reached northern declination of ∠25.868°. Next day the lunar orbit moves southward to face South declination of ∠-25.980° in the next southern standstill on 15 September 2021 at 03:48 in ♑ Capricorn.

Previous standstillNext standstill

Syzygy in 6 days

After 6 days on 20 September 2021 at 23:55 in ♓ Pisces, 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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