Gibbous ♈ Aries
Moon phase on 19 December 2015 Saturday 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 60% and growing larger. The 8 days young Moon is in ♈ Aries.
* The exact date and time of this First Quarter phase is on 18 December 2015 at 15:14 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 1.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1973" and ∠1950".
Next Full Moon is the Cold Moon of December 2015 after 5 days on 25 December 2015 at 11:11.
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 197 of Meeus index or 1150 from Brown series.
Length of current 197 lunation is 29 days, 15 hours and 1 minute. It is 1 hour and 53 minutes longer than next lunation 198 length.
Length of current synodic month is 2 hours and 17 minutes longer than the mean length of synodic month, but it is still 4 hours and 46 minutes shorter, compared to 21st century longest.
This lunation true anomaly is ∠255.6°. At the beginning of next synodic month true anomaly will be ∠292.2°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).
13 days after point of apogee on 5 December 2015 at 14:56 in ♎ Libra. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next day, until it get to the point of next perigee on 21 December 2015 at 08:53 in ♉ Taurus.
Moon is 363 342 km (225 770 mi) away from Earth on this date. Moon moves closer next day until perigee, when Earth-Moon distance will reach 368 418 km (228 924 mi).
1 day after its descending node on 18 December 2015 at 15:13 in ♓ Pisces, the Moon is following the southern part of its orbit for the next 12 days, until it will cross the ecliptic from South to North in ascending node on 31 December 2015 at 20:19 in ♍ Virgo.
14 days after beginning of current draconic month in ♍ Virgo, the Moon is moving from the second to the final part of it.
7 days after previous South standstill on 12 December 2015 at 08:15 in ♑ Capricorn, when Moon has reached southern declination of ∠-18.438°. Next 5 days the lunar orbit moves northward to face North declination of ∠18.444° in the next northern standstill on 25 December 2015 at 07:30 in ♋ Cancer.
After 5 days on 25 December 2015 at 11:11 in ♋ Cancer, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.