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

The length of the lunation is 29 days, 12 hours and 44 minutes. It is 1 hour and 21 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length same as the mean

The length of the current synodic month is equal to the mean synodic month length. It is %hours_to_shortest% and %minutes_to_shortest% longer than the 21st century's shortest and %hours_to_longest% and %minutes_to_longest% shorter than the 21st century's longest synodic months.

Lunar orbit position on

True anomaly ∠30.1°

At the beginning of the lunation cycle the true anomaly is ∠30.1°. At the beginning of next synodic month the true anomaly is going to be ∠53.8°.

Moon before perigee

8 days after point of perigee on 12 December 2020 at 20:42 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 3 days, until the Moon reaches the point of next apogee on 24 December 2020 at 16:32 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 399 554 km

The Moon is 399 554 km (248 271 mi) away from Earth and getting further over the next 3 days until the point apogee when Earth-Moon distance is going to be 405 010 km (251 662 mi).

Moon after descending node

7 days after descending node on 14 December 2020 at 11:03 in ♐ Sagittarius. The Moon is located south of the ecliptic over the following 7 days, until the lunar orbit crosses from South to North in ascending node on 28 December 2020 at 15:03 in ♊ Gemini.

Previous nodeNext node

Draconic month

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

PreviousCurrent draconic monthNext

Moon after southern standstill

5 days since the previous standstill on 15 December 2020 at 22:23 in ♑ Capricorn when the Moon has reached South declination of ∠-24.879°, the lunar orbit is extending northward over the next 8 days to face maximum declination of ∠24.868° at the point of next northern standstill on 30 December 2020 at 07:53 in ♋ Cancer.

Previous standstillNext standstill

Syzygy in 8 days

In 8 days on 30 December 2020 at 03:28 in ♋ Cancer 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.

Previous syzygyNext syzygy

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