Quarter ♈ Aries
Moon phase on 21 December 2020 Monday is First Quarter, 7 days young Moon is in Pisces.Share this page: twitter facebook linkedin
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.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠25° of ♓ Pisces tropical zodiac sector.
Lunar disc appears visually 8.4% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1794" and ∠1951".
Next Full Moon is the Cold Moon of December 2020 after 8 days on 30 December 2020 at 03:28.
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.
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.
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.
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.
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°).
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.
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).
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.
20 days after beginning of current draconic month in ♊ Gemini, the Moon is moving from the second to the final part of it.
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.
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.