Crescent ♑ Capricorn
Moon phase on 18 December 2017 Monday is New Moon, less than 1 day young Moon is in Sagittarius.Share this page: twitter facebook linkedin
Moon rises at sunrise and sets at sunset. It's part facing the Earth is completely in shadow.
Lunar disc is not visible from Earth. Moon and Sun apparent angular diameters are ∠1768" and ∠1950".
Next Full Moon is the Wolf Moon of January 2018 after 14 days on 2 January 2018 at 02:24.
There is high New Moon ocean tide on this date. Combined Sun and Moon gravitational tidal force working on Earth is strong, because of the Sun-Moon-Earth syzygy alignment.
At 06:30 on this date the Moon completes the old and enters a new synodic month with lunation 222 of Meeus index or 1175 from Brown series.
29 days, 19 hours and 47 minutes is the length of new lunation 222. 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°).
14 days after point of perigee on 4 December 2017 at 08:42 in ♊ Gemini. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next day, until it get to the point of next apogee on 19 December 2017 at 01:27 in ♑ Capricorn.
Moon is 405 413 km (251 912 mi) away from Earth on this date. Moon moves farther next day until apogee, when Earth-Moon distance will reach 406 605 km (252 653 mi).
10 days after its ascending node on 8 December 2017 at 00:39 in ♌ Leo, the Moon is following the northern part of its orbit for the next 3 days, until it will cross the ecliptic from North to South in descending node on 22 December 2017 at 10:04 in ♒ Aquarius.
10 days after beginning of current draconic month in ♌ Leo, the Moon is moving from the beginning to the first part of it.
13 days after previous North standstill on 5 December 2017 at 11:43 in ♋ Cancer, when Moon has reached northern declination of ∠20.015°. Next day the lunar orbit moves southward to face South declination of ∠-20.062° in the next southern standstill on 19 December 2017 at 09:31 in ♑ Capricorn.
The Moon is in New Moon geocentric conjunction with the Sun on this date and this alignment forms Sun-Moon-Earth syzygy.