Waxing Gibbous on

Moon phase on 21 January 2013 Monday is Waxing Gibbous, 9 days young Moon is in Taurus.

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Moon phase for

Lunar calendar 2013 | January 2013

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

Waxing Gibbous 73% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 73% and growing larger. The 9 days young Moon is in ♉ Taurus.

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Moon phases for next 7 days

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Moon phase and lunation details

2 days after First Quarter

Previous main lunar phase is the First Quarter before 2 days on 18 January 2013 at 23:45.

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.

Moon in ♉ Taurus

Moon is leaving the last ∠1° of ♉ Taurus tropical zodiac sector and will enter ♊ Gemini later.

Apparent angular diameter ∠1771"

Lunar disc appears visually 9.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1771" and ∠1950".

Wolf Moon after 5 days

Next Full Moon is the Wolf Moon of January 2013 after 5 days on 27 January 2013 at 04:38.

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 161 / 1114

The Moon is 9 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 161 of Meeus index or 1114 from Brown series.

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Synodic month length 29.48 days

The length of the lunation is 29 days, 11 hours and 36 minutes. It is 55 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length shorter than mean

The length of the current synodic month is 1 hour and 8 minutes shorter than the mean synodic month length. It is 5 hours and 1 minute longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠23.3°

At the beginning of the lunation cycle the true anomaly is ∠23.3°. At the beginning of next synodic month the true anomaly is going to be ∠44.2°.

Moon before perigee

11 days after point of perigee on 10 January 2013 at 10:26 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 22 January 2013 at 10:52 in ♊ Gemini.

Previous perigeeNext apogee

Distance to Moon 404 678 km

The Moon is 404 678 km (251 455 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 405 313 km (251 850 mi).

Moon in descending node

Moon is in descending node in ♉ Taurus at 01:19 crossing the ecliptic from North to South to meet ascending node 13 days later on 4 February 2013 at 02:14 in ♏ Scorpio.

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Draconic month

13 days since the beginning of current draconic month in ♏ Scorpio, the Moon is navigating from the middle to the last part of the cycle.

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Moon before northern standstill

11 days since the previous standstill on 9 January 2013 at 15:22 in ♐ Sagittarius when the Moon has reached South declination of ∠-20.879°, the lunar orbit is extending northward over the next day to face maximum declination of ∠20.816° at the point of next northern standstill on 23 January 2013 at 05:12 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 5 days

In 5 days on 27 January 2013 at 04:38 in ♌ Leo the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon syzygy alignment.

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