Waning Gibbous on

Moon phase on 1 February 2013 Friday is Waning Gibbous, 20 days old Moon is in Libra.

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Moon phase for

Lunar calendar 2013 | February 2013

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

Waning Gibbous 72% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 72% and getting smaller. The 20 days old Moon is in ♎ Libra.

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Moon phases for next 7 days

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Moon phase and lunation details

5 days after Full Moon

Previous main lunar phase is the Full Moon before 5 days on 27 January 2013 at 04:38.

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 ♎ Libra

Moon is passing about ∠16° of ♎ Libra tropical zodiac sector.

Apparent angular diameter ∠1922"

Lunar disc appears visually 1.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1922" and ∠1947".

Wolf Moon before 5 days

Next Full Moon is the Snow Moon of February 2013 after 24 days on 25 February 2013 at 20:26.

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 161 / 1114

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 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 apogee

10 days after point of apogee on 22 January 2013 at 10:52 in ♊ Gemini. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 6 days, until the Moon reaches the point of next perigee on 7 February 2013 at 12:09 in ♑ Capricorn.

Previous apogeeNext perigee

Distance to Moon 373 019 km

The Moon is 373 019 km (231 783 mi) away from Earth and getting closer over the next 6 days until the point perigee when Earth-Moon distance is going to be 365 314 km (226 996 mi).

Moon before ascending node

11 days after descending node on 21 January 2013 at 01:19 in ♉ Taurus. The Moon is located south of the ecliptic over the following 2 days, until the lunar orbit crosses from South to North in ascending node on 4 February 2013 at 02:14 in ♏ Scorpio.

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Draconic month

24 days since the beginning of current draconic month in ♏ Scorpio, the Moon is navigating from the second to the final part of the cycle.

PreviousCurrent draconic monthNext

Moon before southern standstill

9 days since the previous standstill on 23 January 2013 at 05:12 in ♊ Gemini when the Moon has reached North declination of ∠20.816°, the lunar orbit is extending southward over the next 4 days to face maximum declination of ∠-20.704° at the point of next southern standstill on 6 February 2013 at 00:27 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 8 days

In 8 days on 10 February 2013 at 07:20 in ♒ Aquarius the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.

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