Gibbous ♌ Leo
Moon phase on 21 December 2021 Tuesday is Waning Gibbous, 17 days old Moon is in Cancer.Share this page: twitter facebook linkedin
Previous main lunar phase is the Full Moon before 2 days on 19 December 2021 at 04:36.
Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.
Moon is passing about ∠25° of ♋ Cancer tropical zodiac sector.
Lunar disc appears visually 8.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1788" and ∠1951".
Next Full Moon is the Wolf Moon of January 2022 after 27 days on 17 January 2022 at 23:49.
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 17 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 271 of Meeus index or 1224 from Brown series.
Length of current 271 lunation is 29 days, 10 hours and 50 minutes. It is 23 minutes shorter than next lunation 272 length.
Length of current synodic month is 1 hour and 54 minutes shorter than the mean length of synodic month, but it is still 4 hours and 15 minutes longer, compared to 21st century shortest.
This New Moon true anomaly is ∠358.3°. At beginning of next synodic month true anomaly will be ∠13.9°. 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°).
3 days after point of apogee on 18 December 2021 at 02:16 in ♊ Gemini. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 11 days, until it get to the point of next perigee on 1 January 2022 at 23:00 in ♐ Sagittarius.
Moon is 400 784 km (249 036 mi) away from Earth on this date. Moon moves closer next 11 days until perigee, when Earth-Moon distance will reach 358 037 km (222 474 mi).
4 days after its ascending node on 17 December 2021 at 00:12 in ♊ Gemini, the Moon is following the northern part of its orbit for the next 9 days, until it will cross the ecliptic from North to South in descending node on 31 December 2021 at 01:07 in ♐ Sagittarius.
4 days after beginning of current draconic month in ♊ Gemini, the Moon is moving from the beginning to the first part of it.
1 day after previous North standstill on 20 December 2021 at 04:32 in ♋ Cancer, when Moon has reached northern declination of ∠26.306°. Next 12 days the lunar orbit moves southward to face South declination of ∠-26.304° in the next southern standstill on 2 January 2022 at 13:35 in ♑ Capricorn.
After 12 days on 2 January 2022 at 18:33 in ♑ Capricorn, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.