Quarter ♈ Aries
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 51% and growing larger. The 7 days young Moon is in ♈ Aries.
* The exact date and time of this First Quarter phase is on 26 December 2017 at 09:20 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠6° of ♈ Aries tropical zodiac sector.
Lunar disc appears visually 4.1% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1873" and ∠1951".
Next Full Moon is the Wolf Moon of January 2018 after 6 days on 2 January 2018 at 02:24.
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 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 222 of Meeus index or 1175 from Brown series.
Length of current 222 lunation is 29 days, 19 hours and 47 minutes. This is the year's longest synodic month of 2017. It is 59 minutes longer than next lunation 223 length.
Length of current synodic month is 7 hours and 3 minutes longer than the mean length of synodic month and it is the longest synodic month length of a for 21st century.
This lunation true anomaly is ∠173.3°. At the beginning of next synodic month true anomaly will be ∠198.1°. 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°).
7 days after point of apogee on 19 December 2017 at 01:27 in ♑ Capricorn. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 6 days, until it get to the point of next perigee on 1 January 2018 at 21:54 in ♋ Cancer.
Moon is 382 700 km (237 799 mi) away from Earth on this date. Moon moves closer next 6 days until perigee, when Earth-Moon distance will reach 356 566 km (221 560 mi).
4 days after its descending node on 22 December 2017 at 10:04 in ♒ Aquarius, the Moon is following the southern part of its orbit for the next 8 days, until it will cross the ecliptic from South to North in ascending node on 4 January 2018 at 07:48 in ♌ Leo.
18 days after beginning of current draconic month in ♌ Leo, the Moon is moving from the second to the final part of it.
7 days after previous South standstill on 19 December 2017 at 09:31 in ♑ Capricorn, when Moon has reached southern declination of ∠-20.062°. Next 6 days the lunar orbit moves northward to face North declination of ∠20.055° in the next northern standstill on 2 January 2018 at 00:01 in ♋ Cancer.
After 6 days on 2 January 2018 at 02:24 in ♋ Cancer, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.