Waning Gibbous on

Moon phase on 18 December 2013 Wednesday is Waning Gibbous, 15 days old Moon is in Cancer.

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Moon phase for

Lunar calendar 2013 | December 2013

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

Waning Gibbous 99% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 99% and getting smaller. The 15 days old Moon is in ♋ Cancer.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after Full Moon

Previous main lunar phase is the Full Moon before 1 day on 17 December 2013 at 09:28.

Moonrise and moonset

Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.

Moon in ♋ Cancer

Moon is passing about ∠9° of ♋ Cancer tropical zodiac sector.

Apparent angular diameter ∠1770"

Lunar disc appears visually 9.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1770" and ∠1950".

Cold Moon before 1 day

Next Full Moon is the Wolf Moon of January 2014 after 28 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 15 days old. Earth's natural satellite is moving from the middle to the last 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

The length of the 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 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 shorter than mean

The length of the current synodic month is 1 hour and 52 minutes shorter than the mean synodic month length. It is 4 hours and 17 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠336.4°

At the beginning of the lunation cycle the true anomaly is ∠336.4°. At the beginning of next synodic month the true anomaly is going to be ∠353°.

Moon before perigee

14 days after point of perigee on 4 December 2013 at 10:15 in ♑ Capricorn. 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 19 December 2013 at 23:49 in ♋ Cancer.

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Distance to Moon 404 935 km

The Moon is 404 935 km (251 615 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 406 269 km (252 444 mi).

Moon after descending node

5 days after descending node on 13 December 2013 at 10:10 in ♉ Taurus. The Moon is located south of the ecliptic over the following 9 days, until the lunar orbit crosses from South to North in ascending node on 28 December 2013 at 00:21 in ♏ Scorpio.

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Draconic month

17 days since the beginning of current draconic month in ♏ Scorpio, the Moon is navigating from the second to the final part of the cycle.

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Moon after northern standstill

1 day since the previous standstill on 17 December 2013 at 01:00 in ♊ Gemini when the Moon has reached North declination of ∠19.570°, the lunar orbit is extending southward over the next 12 days to face maximum declination of ∠-19.537° at the point of next southern standstill on 31 December 2013 at 04:49 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 13 days

In 13 days on 1 January 2014 at 11:14 in ♑ Capricorn 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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