First Quarter on

Moon phase on 21 December 2020 Monday is First Quarter, 7 days young Moon is in Pisces.

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Moon phase for

Lunar calendar 2020 | December 2020

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

First Quarter 45% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 45% and growing larger. The 7 days young Moon is in ♓ Pisces.

* The exact date and time of this First Quarter phase is on 21 December 2020 at 23:41 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 in ♓ Pisces

Moon is passing about ∠25° of ♓ Pisces tropical zodiac sector.

Apparent angular diameter ∠1794"

Lunar disc appears visually 8.4% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1794" and ∠1951".

Cold Moon after 8 days

Next Full Moon is the Cold Moon of December 2020 after 8 days on 30 December 2020 at 03:28.

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 259 / 1212

The Moon is 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 259 of Meeus index or 1212 from Brown series.

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Synodic month length 29.53 days

Length of current 259 lunation is 29 days, 12 hours and 44 minutes. It is 1 hour and 21 minutes shorter than next lunation 260 length.

Lunation length same as the mean

Length of current synodic month is equal to the mean length of synodic month. It is 6 hours and 9 minutes longer than the 21st century shortest and 7 hours and 3 minutes shorter than the 21st century longest synodic month.

Lunar orbit position on

True anomaly ∠30.1°

This New Moon true anomaly is ∠30.1°. At beginning of next synodic month true anomaly will be ∠53.8°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon before apogee

8 days after point of perigee on 12 December 2020 at 20:42 in ♏ Scorpio. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 3 days, until it get to the point of next apogee on 24 December 2020 at 16:32 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 399 554 km

Moon is 399 554 km (248 271 mi) away from Earth on this date. Moon moves farther next 3 days until apogee, when Earth-Moon distance will reach 405 010 km (251 662 mi).

Moon after descending node

7 days after its descending node on 14 December 2020 at 11:03 in ♐ Sagittarius, the Moon is following the southern part of its orbit for the next 7 days, until it will cross the ecliptic from South to North in ascending node on 28 December 2020 at 15:03 in ♊ Gemini.

Previous nodeNext node

Draconic month

20 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 after southern standstill

5 days after previous South standstill on 15 December 2020 at 22:23 in ♑ Capricorn, when Moon has reached southern declination of ∠-24.879°. Next 8 days the lunar orbit moves northward to face North declination of ∠24.868° in the next northern standstill on 30 December 2020 at 07:53 in ♋ Cancer.

Previous standstillNext standstill

Syzygy in 8 days

After 8 days on 30 December 2020 at 03:28 in ♋ Cancer, 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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