Gibbous ♈ Aries
Moon phase on 18 December 2091 Tuesday 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 57% and growing larger. The 8 days young Moon is in ♈ Aries.
* The exact date and time of this First Quarter phase is on 17 December 2091 at 17:29 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠5° of ♈ Aries tropical zodiac sector.
Lunar disc appears visually 8.5% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1791" and ∠1950".
Next Full Moon is the Cold Moon of December 2091 after 7 days on 25 December 2091 at 21:59.
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 1137 of Meeus index or 2090 from Brown series.
Length of current 1137 lunation is 29 days, 11 hours and 43 minutes. It is 1 hour and 43 minutes shorter than next lunation 1138 length.
Length of current synodic month is 1 hour and 1 minute shorter than the mean length of synodic month, but it is still 5 hours and 8 minutes longer, compared to 21st century shortest.
This New Moon true anomaly is ∠20.8°. At beginning of next synodic month true anomaly will be ∠40.9°. 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°).
9 days after point of perigee on 9 December 2091 at 08:19 in ♐ Sagittarius. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 2 days, until it get to the point of next apogee on 21 December 2091 at 10:59 in ♉ Taurus.
Moon is 400 195 km (248 670 mi) away from Earth on this date. Moon moves farther next 2 days until apogee, when Earth-Moon distance will reach 405 544 km (251 993 mi).
3 days after its descending node on 15 December 2091 at 07:03 in ♒ Aquarius, the Moon is following the southern part of its orbit for the next 11 days, until it will cross the ecliptic from South to North in ascending node on 29 December 2091 at 20:00 in ♌ Leo.
15 days after beginning of current draconic month in ♌ Leo, the Moon is moving from the second to the final part of it.
6 days after previous South standstill on 11 December 2091 at 21:10 in ♑ Capricorn, when Moon has reached southern declination of ∠-19.452°. Next 7 days the lunar orbit moves northward to face North declination of ∠19.486° in the next northern standstill on 26 December 2091 at 05:43 in ♋ Cancer.
After 7 days on 25 December 2091 at 21:59 in ♊ Gemini, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.