Waning Crescent on

Moon phase on 31 January 2011 Monday is Waning Crescent, 27 days old Moon is in Capricorn.

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Moon phase for

Lunar calendar 2011 | January 2011

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

Waning Crescent 7% illuminated

Waning Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 7% and getting smaller. The 27 days old Moon is in ♑ Capricorn.

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Moon phases for next 7 days

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Moon phase and lunation details

4 days after Last Quarter

Previous main lunar phase is the Last Quarter before 4 days on 26 January 2011 at 12:57.

Moonrise and moonset

Moon rises after midnight to early morning and sets in the afternoon. It is visible in the early morning low to the east.

Moon in ♑ Capricorn

Moon is passing about ∠12° of ♑ Capricorn tropical zodiac sector.

Apparent angular diameter ∠1839"

Lunar disc appears visually 5.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1839" and ∠1947".

Snow Moon after 17 days

Next Full Moon is the Snow Moon of February 2011 after 17 days on 18 February 2011 at 08:36.

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 136 / 1089

The Moon is 27 days old. Earth's natural satellite is moving from the second to the final part of current synodic month. This is lunation 136 of Meeus index or 1089 from Brown series.

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Synodic month length 29.73 days

Length of current 136 lunation is 29 days, 17 hours and 28 minutes. It is 47 minutes shorter than next lunation 137 length.

Lunation length longer than mean

Length of current synodic month is 4 hours and 44 minutes longer than the mean length of synodic month, but it is still 2 hours and 19 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠103.5°

This New Moon true anomaly is ∠103.5°. At beginning of next synodic month true anomaly will be ∠139.2°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon before apogee

9 days after point of perigee on 22 January 2011 at 00:10 in ♍ Virgo. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 6 days, until it get to the point of next apogee on 6 February 2011 at 23:13 in ♓ Pisces.

Previous perigeeNext apogee

Distance to Moon 389 773 km

Moon is 389 773 km (242 194 mi) away from Earth on this date. Moon moves farther next 6 days until apogee, when Earth-Moon distance will reach 405 924 km (252 229 mi).

Moon after ascending node

1 day after its ascending node on 30 January 2011 at 18:29 in ♐ Sagittarius, the Moon is following the northern part of its orbit for the next 13 days, until it will cross the ecliptic from North to South in descending node on 14 February 2011 at 08:14 in ♋ Cancer.

Previous nodeNext node

Draconic month

1 day after beginning of current draconic month in ♐ Sagittarius, the Moon is moving from the beginning to the first part of it.

PreviousCurrent draconic monthNext

Moon after southern standstill

1 day after previous South standstill on 29 January 2011 at 16:26 in ♐ Sagittarius, when Moon has reached southern declination of ∠-24.180°. Next 12 days the lunar orbit moves northward to face North declination of ∠24.080° in the next northern standstill on 13 February 2011 at 09:00 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 2 days

After 2 days on 3 February 2011 at 02:31 in ♒ Aquarius, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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