Waxing Gibbous on

Moon phase on 31 January 2015 Saturday is Waxing Gibbous, 11 days young Moon is in Cancer.

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Moon phase for

Lunar calendar 2015 | January 2015

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

Waxing Gibbous 89% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 89% and growing larger. The 11 days young Moon is in ♋ Cancer.

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Moon phases for next 7 days

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Moon phase and lunation details

4 days after First Quarter

Previous main lunar phase is the First Quarter before 4 days on 27 January 2015 at 04:48.

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 is entering ♋ Cancer

Moon is passing first ∠2° of ♋ Cancer tropical zodiac sector.

Apparent angular diameter ∠1825"

Lunar disc appears visually 6.5% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1825" and ∠1947".

Snow Moon after 3 days

Next Full Moon is the Snow Moon of February 2015 after 3 days on 3 February 2015 at 23:09.

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 186 / 1139

The Moon is 11 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 186 of Meeus index or 1139 from Brown series.

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Synodic month length 29.44 days

The length of the lunation is 29 days, 10 hours and 34 minutes. It is 45 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 2 hours and 10 minutes shorter than the mean synodic month length. It is 3 hours and 59 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠338.3°

At the beginning of the lunation cycle the true anomaly is ∠338.3°. At the beginning of next synodic month the true anomaly is going to be ∠354.5°.

Moon before perigee

9 days after point of perigee on 21 January 2015 at 20:06 in ♒ Aquarius. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 5 days, until the Moon reaches the point of next apogee on 6 February 2015 at 06:25 in ♍ Virgo.

Previous perigeeNext apogee

Distance to Moon 392 711 km

The Moon is 392 711 km (244 019 mi) away from Earth and getting further over the next 5 days until the point apogee when Earth-Moon distance is going to be 406 155 km (252 373 mi).

Moon after descending node

6 days after descending node on 25 January 2015 at 10:23 in ♈ Aries. The Moon is located south of the ecliptic over the following 8 days, until the lunar orbit crosses from South to North in ascending node on 8 February 2015 at 17:10 in ♎ Libra.

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Draconic month

18 days since the beginning of current draconic month in ♎ Libra, the Moon is navigating from the second to the final part of the cycle.

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Moon at northern standstill

At 00:59 the Moon is meeting its standstill point to reach North declination of ∠18.513°. Over the next 14 days the lunar orbit is going to extend southward to face maximum declination of ∠-18.402° at the point of next standstill in ♐ Sagittarius on 14 February 2015 at 17:17.

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Syzygy in 3 days

In 3 days on 3 February 2015 at 23:09 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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