New Moon on

Moon phase on 18 December 2017 Monday is New Moon, less than 1 day young Moon is in Sagittarius.

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Moon phase for

Lunar calendar 2017 | December 2017

New Moon phase
New Moon phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

New Moon

New Moon is the lunar phase on . Surface of the Moon disc is not illuminated. The less than 1 day young Moon is in ♐ Sagittarius.

* The exact date and time of this New Moon phase is on 18 December 2017 at 06:31 UTC.

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Moon phases for next 7 days

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Moon phase and lunation details

Moonrise and moonset

Moon rises at sunrise and sets at sunset. It's part facing the Earth is completely in shadow.

Moon in ♐ Sagittarius

Moon is leaving the last ∠1° of ♐ Sagittarius tropical zodiac sector and will enter ♑ Capricorn later.

Apparent angular diameter

Lunar disc is not visible from Earth. Moon and Sun apparent angular diameters are ∠1768" and ∠1950".

Wolf Moon after 14 days

Next Full Moon is the Wolf Moon of January 2018 after 14 days on 2 January 2018 at 02:24.

Upcoming main Moon phases

Spring tide

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.

New lunation 222 / 1175

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.


Synodic month length 29.82 days

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.

Lunation length longer than mean

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.

Lunar orbit position on

True anomaly ∠173.3°

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°).

Moon before apogee

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.

Previous perigeeNext apogee

Distance to Moon 405 413 km

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).

Moon before descending node

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.

Previous nodeNext node

Draconic month

10 days after beginning of current draconic month in ♌ Leo, the Moon is moving from the beginning to the first part of it.

PreviousCurrent draconic monthNext

Moon before southern standstill

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.

Previous standstillNext standstill

Sun-Moon-Earth syzygy

The Moon is in New Moon geocentric conjunction with the Sun on this date and this alignment forms Sun-Moon-Earth syzygy.

Previous syzygyNext syzygy

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