Waxing Gibbous on

Moon phase on 16 December 2013 Monday is Waxing Gibbous, 14 days young Moon is in Gemini.

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Moon phase details for

Lunar calendar 2013 | December 2013

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

Waxing Gibbous 99% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 99% and growing larger.

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6 days after First Quarter

Previous main lunar phase is the First Quarter before 6 days on 9 December 2013 at 15:12.

Moonrise and moonset

Moon rises in the afternoon and sets after midnight to early morning. It is visible to the southeast in early evening and it is up for most of the night.

Apparent angular diameter ∠1787"

Lunar disc appears visually 8.71% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1787" and ∠1950".

Cold Moon after 1 day

Next Full Moon is the Cold Moon of December after 1 day on 17 December 2013 at 09:28.

Moon in Gemini

Moon is passing about ∠14° of Gemini tropical zodiac sector.

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.

Upcoming Moon phases

Synodic month details

Lunation 172 / 1125

Moon is 14 days young. Earth's natural satellite is moving from the first to the middle 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 before apogee

12 days after point of perigee on 4 December 2013 at 10:15, lunar orbit gets wider while the Moon moves outward the Earth. It keeps this direction for next 3 days until it gets to the point of apogee on 19 December 2013 at 23:49.

Distance to Moon 401 100 km

Moon is 401 100 km (249 232 mi) away from Earth on this date. At previous perigee point before 12 days, distance is 360 065 km (223 734 mi). Moon moves farther next 3 days until apogee, when Earth-Moon distance reaches 406 269 km (252 444 mi).

Moon after descending node

3 days after its descending node on 13 December 2013 at 10:10, the Moon follows the southern part of its orbit for the next 11 days untill it crosses the ecliptic from South to North in ascending node on 28 December 2013 at 00:21.

Draconic month

15 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 northern standstill

12 days after previous South standstill on 3 December 2013 at 16:38, when Moon reaches southern declination of ∠-19.552°, lunar orbit moves northward for the next 1 day to face North declination of ∠19.570° in the next northern standstill on 17 December 2013 at 01:00.

Syzygy in 1 day

After 1 day the Moon is in Full Moon opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy on 17 December 2013 at 09:28.

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