Last Quarter on

Moon phase on 20 January 2017 Friday is Last Quarter, 22 days old Moon is in Scorpio.

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Moon phase for

Lunar calendar 2017 | January 2017

Last Quarter phase
Last Quarter phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Last Quarter 45% illuminated

Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 45% and getting smaller. The 22 days old Moon is in ♏ Scorpio.

* The exact date and time of this Last Quarter phase is on 19 January 2017 at 22:14 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 midnight and sets at noon. It is visible to the south in the morning.

Moon in ♏ Scorpio

Moon is passing about ∠7° of ♏ Scorpio tropical zodiac sector.

Apparent angular diameter ∠1774"

Lunar disc appears visually 9.4% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1774" and ∠1950".

Snow Moon after 21 days

Next Full Moon is the Snow Moon of February 2017 after 21 days on 11 February 2017 at 00:33.

Upcoming main Moon phases

Neap tide

There is low ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at big angle, so their combined tidal force is weak.

Lunation 210 / 1163

The Moon is 22 days old. Earth's natural satellite is moving through the last part of current synodic month. This is lunation 210 of Meeus index or 1163 from Brown series.

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Synodic month length 29.72 days

The length of the lunation is 29 days, 17 hours and 14 minutes. It is 2 hours and 23 minutes longer than the next lunation's length. The lengths of the following synodic months are going to decreasing with the true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).

Lunation length longer than mean

The length of the current synodic month is 4 hours and 30 minutes longer than the mean synodic month length. It is 2 hours and 33 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit position on

True anomaly ∠223.4°

At the beginning of the lunation cycle the true anomaly is ∠223.4°. At the beginning of next synodic month the true anomaly is going to be ∠259.5°.

Moon before perigee

10 days after point of perigee on 10 January 2017 at 06:07 in ♊ Gemini. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next day, until the Moon reaches the point of next apogee on 22 January 2017 at 00:14 in ♐ Sagittarius.

Previous perigeeNext apogee

Distance to Moon 404 047 km

The Moon is 404 047 km (251 063 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 404 913 km (251 601 mi).

Moon after ascending node

5 days after ascending node on 15 January 2017 at 10:45 in ♍ Virgo. The Moon is located north of the ecliptic over the following 9 days, until the lunar orbit crosses from North to South in descending node on 29 January 2017 at 22:21 in ♒ Aquarius.

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Draconic month

5 days since the beginning of current draconic month in ♍ Virgo, the Moon is navigating from the beginning to the first part of the cycle.

PreviousCurrent draconic monthNext

Moon before southern standstill

9 days since the previous standstill on 11 January 2017 at 09:32 in ♋ Cancer when the Moon has reached North declination of ∠18.932°, the lunar orbit is extending southward over the next 4 days to face maximum declination of ∠-18.900° at the point of next southern standstill on 25 January 2017 at 11:59 in ♑ Capricorn.

Previous standstillNext standstill

Syzygy in 7 days

In 7 days on 28 January 2017 at 00:07 in ♒ Aquarius the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.

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