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

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 after apogee

3 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 9 days, 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 398 518 km

Moon is 398 518 km (247 628 mi) away from Earth on this date. Moon moves closer next 9 days until perigee, when Earth-Moon distance will reach 356 922 km (221 781 mi).

Moon before ascending node

10 days after its descending node on 13 December 2013 at 10:10 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 4 days, until it will cross the ecliptic from South to North in ascending node on 28 December 2013 at 00:21 in ♏ Scorpio.

Previous nodeNext node

Draconic month

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

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Moon after northern standstill

6 days after previous North standstill on 17 December 2013 at 01:00 in ♊ Gemini, when Moon has reached northern declination of ∠19.570°. Next 7 days the lunar orbit moves southward to face South declination of ∠-19.537° in the next southern standstill on 31 December 2013 at 04:49 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 8 days

After 8 days on 1 January 2014 at 11:14 in ♑ Capricorn, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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