Waning Crescent on

Moon phase on 31 December 2013 Tuesday is Waning Crescent, 28 days old Moon is in Sagittarius.

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Moon phase for

Lunar calendar 2013 | December 2013

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

Waning Crescent 1% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 1% and getting smaller. The 28 days old Moon is in ♐ Sagittarius.

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Moon phases for next 7 days

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Moon phase and lunation details

5 days after Last Quarter

Previous main lunar phase is the Last Quarter before 5 days on 25 December 2013 at 13:48.

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 ♐ Sagittarius

Moon is leaving the last ∠4° of ♐ Sagittarius tropical zodiac sector and will enter ♑ Capricorn later.

Apparent angular diameter ∠1962"

Lunar disc appears visually 0.6% wider than solar disc. Moon and Sun apparent angular diameters are ∠1962" and ∠1951".

Wolf Moon after 15 days

Next Full Moon is the Wolf Moon of January 2014 after 15 days on 16 January 2014 at 04:52.

Upcoming main Moon phases

Moderate tide

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.

Lunation 172 / 1125

The Moon is 28 days old. Earth's natural satellite is moving from the second to the final part of current synodic month. This is lunation 172 of Meeus index or 1125 from Brown series.

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Synodic month length 29.45 days

Length of current 172 lunation is 29 days, 10 hours and 52 minutes. This is the year's shortest synodic month of 2013. It is 28 minutes longer than next lunation 173 length.

Lunation length shorter than mean

Length of current synodic month is 1 hour and 52 minutes shorter than the mean length of synodic month, but it is still 4 hours and 17 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠336.4°

This lunation true anomaly is ∠336.4°. At the beginning of next synodic month true anomaly will be ∠353°. 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 perigee

11 days after point of apogee on 19 December 2013 at 23:49 in ♋ Cancer. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next day, until it get to the point of next perigee on 1 January 2014 at 21:00 in ♑ Capricorn.

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Distance to Moon 365 248 km

Moon is 365 248 km (226 955 mi) away from Earth on this date. Moon moves closer next day until perigee, when Earth-Moon distance will reach 356 922 km (221 781 mi).

Moon after ascending node

3 days after its ascending node on 28 December 2013 at 00:21 in ♏ Scorpio, the Moon is following the northern part of its orbit for the next 8 days, until it will cross the ecliptic from North to South in descending node on 9 January 2014 at 11:26 in ♉ Taurus.

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Draconic month

3 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the beginning to the first part of it.

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Moon in southern standstill

At 04:49 on this date the Moon is meeting its South standstill point, when it will reach southern declination of ∠-19.537°. Next 12 days the lunar orbit will move in opposite northward direction to face North declination of ∠19.501° in its northern standstill point on 13 January 2014 at 08:14 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 1 day

After 1 day on 1 January 2014 at 11:14 in ♑ Capricorn, the Moon will be in Last Quarter geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

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