Last Quarter on

Moon phase on 25 December 2013 Wednesday is Last Quarter, 22 days old Moon is in Libra.

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Moon phase for

Lunar calendar 2013 | December 2013

Last Quarter phase
Last Quarter phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Last Quarter 51% illuminated

Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 51% and getting smaller. The Moon is in ♎ Libra.

* The exact date and time of this Last Quarter phase is on 25 December 2013 at 13:48 UTC.

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Moon phases for next 7 days

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Moon phase and lunation details

Moonrise and moonset

Moon rises at midnight and sets at noon. It is visible to the south in the morning.

Moon is entering ♎ Libra

Moon is passing first ∠3° of ♎ Libra tropical zodiac sector.

Upcoming main Moon phases

Wolf Moon after 21 days

Next Full Moon is the Wolf Moon of January after 21 days on 16 January 2014 at 04:52.

Apparent angular diameter ∠1836"

Lunar disc appears visually 6.06% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1836" and ∠1951".

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

Moon is 22 days old. Earth's natural satellite is moving through 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. It is 28 minutes longer than next lunation 173. This is the shortest synodic month of 2013.

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 is ∠353°. The length of upcoming synodic months decreases since the true anomaly gets closer to the value of New Moon at point of perigee (∠0°or∠360°).

Moon after apogee

5 days after point of apogee on 19 December 2013 at 23:49, lunar orbit gets closer while the Moon moves inward the Earth. It keeps this direction for next 7 days until it gets to the point of perigee on 1 January 2014 at 21:00.

Distance to Moon 390 333 km

Moon is 390 333 km (242 542 mi) away from Earth on this date. At previous apogee point before 5 days, distance is 406 269 km (252 444 mi). Moon moves closer next 7 days until perigee, when Earth-Moon distance reaches 356 922 km (221 781 mi).

Moon before ascending node

12 days after its descending node on 13 December 2013 at 10:10, the Moon follows the southern part of its orbit for the next 2 days untill it crosses the ecliptic from South to North in ascending node on 28 December 2013 at 00:21.

Draconic month

24 days after its beginning, the Moon is moving from the second to the final part of current draconic month.

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Moon before southern standstill

8 days after previous North standstill on 17 December 2013 at 01:00, when Moon reaches northern declination of ∠19.570°, lunar orbit moves southward for the next 5 days to face South declination of ∠-19.537° in the next southern standstill on 31 December 2013 at 04:49.

Syzygy in 6 days

After 6 days the Moon is in New Moon conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy on 1 January 2014 at 11:14.

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