Gibbous ♈ Aries
Moon phase on 20 December 2099 Sunday is First Quarter, 8 days young Moon is in Aries.Share this page: twitter facebook linkedin
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 58% and growing larger. The 8 days young Moon is in ♈ Aries.
* The exact date and time of this First Quarter phase is on 19 December 2099 at 14:22 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠9° of ♈ Aries tropical zodiac sector.
Lunar disc appears visually 9.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1950".
Next Full Moon is the Cold Moon of December 2099 after 7 days on 27 December 2099 at 12:58.
There is medium ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at very acute angle, so their combined tidal force is moderate.
The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 1236 of Meeus index or 2189 from Brown series.
Length of current 1236 lunation is 29 days, 13 hours and 47 minutes. It is 2 hours and 12 minutes shorter than next lunation 1237 length.
Length of current synodic month is 1 hour and 3 minutes longer than the mean length of synodic month, but it is still 6 hours shorter, compared to 21st century longest.
This New Moon true anomaly is ∠49.8°. At beginning of next synodic month true anomaly will be ∠81.3°. 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 is reaching point of apogee on this date at 13:16, this is 11 days after last perigee on 8 December 2099 at 17:50 in ♎ Libra. Lunar orbit is starting to get closer, while the Moon is moving inward the Earth for 13 days ahead, until it will get to the point of next perigee on 3 January 2100 at 08:57 in ♎ Libra.
This apogee Moon is 404 339 km (251 245 mi) away from Earth. It is 1 069 km farther than the mean apogee distance, but it is still 2 370 km closer than the farthest apogee of 21st century.
1 day after its ascending node on 19 December 2099 at 01:02 in ♓ Pisces, the Moon is following the northern part of its orbit for the next 12 days, until it will cross the ecliptic from North to South in descending node on 1 January 2100 at 21:13 in ♍ Virgo.
1 day after beginning of current draconic month in ♓ Pisces, the Moon is moving from the beginning to the first part of it.
7 days after previous South standstill on 12 December 2099 at 13:59 in ♐ Sagittarius, when Moon has reached southern declination of ∠-28.351°. Next 6 days the lunar orbit moves northward to face North declination of ∠28.345° in the next northern standstill on 26 December 2099 at 23:34 in ♊ Gemini.
After 7 days on 27 December 2099 at 12:58 in ♋ Cancer, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.