Waning Gibbous on

Moon phase on 23 December 2013 Monday is Waning Gibbous, 20 days old Moon is in Virgo.

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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 70% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 70% and getting smaller. The 20 days old Moon is in ♍ Virgo.

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Moon phases for next 7 days

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Moon phase and lunation details

6 days after Full Moon

Previous main lunar phase is the Full Moon before 6 days 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 ♍ Virgo

Moon is passing about ∠8° of ♍ Virgo tropical zodiac sector.

Apparent angular diameter ∠1799"

Lunar disc appears visually 8.1% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1799" and ∠1951".

Cold Moon before 6 days

Next Full Moon is the Wolf Moon of January 2014 after 23 days on 16 January 2014 at 04:52.

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 172 / 1125

The Moon is 20 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 after apogee

3 days after point of apogee on 19 December 2013 at 23:49 in ♋ Cancer. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 9 days, until the Moon reaches the point of next perigee on 1 January 2014 at 21:00 in ♑ Capricorn.

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Distance to Moon 398 518 km

The Moon is 398 518 km (247 628 mi) away from Earth and getting closer over the next 9 days until the point perigee when Earth-Moon distance is going to be 356 922 km (221 781 mi).

Moon before ascending node

10 days after descending node on 13 December 2013 at 10:10 in ♉ Taurus. The Moon is located south of the ecliptic over the following 4 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

22 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

6 days 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 7 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 8 days

In 8 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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