Waning Crescent on

Moon phase on 21 January 2017 Saturday is Waning Crescent, 23 days old Moon is in Scorpio.

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Moon phase for

Lunar calendar 2017 | January 2017

Waning Crescent phase
Waning Crescent phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Waning Crescent 35% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 35% and getting smaller. The 23 days old Moon is in ♏ Scorpio.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after Last Quarter

Previous main lunar phase is the Last Quarter before 1 day on 19 January 2017 at 22:14.

Moonrise and moonset

Moon rises after midnight to early morning and sets in the afternoon. It is visible in the early morning low to the east.

Moon in ♏ Scorpio

Moon is passing about ∠19° of ♏ Scorpio tropical zodiac sector.

Apparent angular diameter ∠1769"

Lunar disc appears visually 9.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1769" and ∠1950".

Snow Moon after 20 days

Next Full Moon is the Snow Moon of February 2017 after 20 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 23 days old. Earth's natural satellite is moving from the second to the final 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

11 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 405 250 km

The Moon is 405 250 km (251 811 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

6 days after ascending node on 15 January 2017 at 10:45 in ♍ Virgo. The Moon is located north of the ecliptic over the following 8 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

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

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Moon before southern standstill

10 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 3 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 6 days

In 6 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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