Waning Gibbous on

Moon phase on 21 January 2011 Friday is Waning Gibbous, 16 days old Moon is in Leo.

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Moon phase for

Lunar calendar 2011 | January 2011

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

Waning Gibbous 96% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 96% and getting smaller. The 16 days old Moon is in ♌ Leo.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after Full Moon

Previous main lunar phase is the Full Moon before 1 day on 19 January 2011 at 21:21.

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 ♌ Leo

Moon is passing about ∠23° of ♌ Leo tropical zodiac sector.

Apparent angular diameter ∠1959"

Lunar disc appears visually 0.5% wider than solar disc. Moon and Sun apparent angular diameters are ∠1959" and ∠1950".

Wolf Moon before 1 day

Next Full Moon is the Snow Moon of February 2011 after 27 days on 18 February 2011 at 08:36.

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 136 / 1089

The Moon is 16 days old. Earth's natural satellite is moving from the middle to the last 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 perigee

11 days after point of apogee on 10 January 2011 at 05:38 in ♓ Pisces. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next day, until it get to the point of next perigee on 22 January 2011 at 00:10 in ♍ Virgo.

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Distance to Moon 365 923 km

Moon is 365 923 km (227 374 mi) away from Earth on this date. Moon moves closer next day until perigee, when Earth-Moon distance will reach 362 793 km (225 429 mi).

Moon after descending node

3 days after its descending node on 18 January 2011 at 00:06 in ♋ Cancer, the Moon is following the southern part of its orbit for the next 9 days, until it will cross the ecliptic from South to North in ascending node on 30 January 2011 at 18:29 in ♐ Sagittarius.

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Draconic month

17 days after beginning of current draconic month in ♑ Capricorn, the Moon is moving from the second to the final part of it.

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Moon after northern standstill

4 days after previous North standstill on 16 January 2011 at 22:51 in ♊ Gemini, when Moon has reached northern declination of ∠24.221°. Next 8 days the lunar orbit moves southward to face South declination of ∠-24.180° in the next southern standstill on 29 January 2011 at 16:26 in ♐ Sagittarius.

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Syzygy in 12 days

After 12 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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