Waning Gibbous on

Moon phase on 22 May 2011 Sunday is Waning Gibbous, 20 days old Moon is in Aquarius.

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Moon phase for

Lunar calendar 2011 | May 2011

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 ♒ Aquarius.

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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 17 May 2011 at 11:09.

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 ♒ Aquarius

Moon is passing about ∠5° of ♒ Aquarius tropical zodiac sector.

Apparent angular diameter ∠1822"

Lunar disc appears visually 3.9% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1822" and ∠1895".

Flower Moon before 5 days

Next Full Moon is the Strawberry Moon of June 2011 after 24 days on 15 June 2011 at 20:13.

Upcoming main Moon phases

  • Last Quarter in Aquarius ♒ on 24 May 2011 at 18:52
  • New Moon in Gemini ♊ on 1 June 2011 at 21:03
  • First Quarter in Virgo ♍ on 9 June 2011 at 02:11
  • Full Moon in Sagittarius ♐ on 15 June 2011 at 20:13

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 140 / 1093

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 140 of Meeus index or 1093 from Brown series.

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Synodic month length 29.59 days

Length of current 140 lunation is 29 days, 14 hours and 12 minutes. It is 2 hours and 21 minutes longer than next lunation 141 length.

Lunation length longer than mean

Length of current synodic month is 1 hour and 28 minutes longer than the mean length of synodic month, but it is still 5 hours and 35 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠216.7°

This lunation true anomaly is ∠216.7°. At the beginning of next synodic month true anomaly will be ∠248.4°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).

Moon before apogee

7 days after point of perigee on 15 May 2011 at 11:18 in ♎ Libra. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 4 days, until it get to the point of next apogee on 27 May 2011 at 09:58 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 393 312 km

Moon is 393 312 km (244 393 mi) away from Earth on this date. Moon moves farther next 4 days until apogee, when Earth-Moon distance will reach 405 006 km (251 659 mi).

Moon after ascending node

3 days after its ascending node on 19 May 2011 at 09:03 in ♐ Sagittarius, the Moon is following the northern part of its orbit for the next 11 days, until it will cross the ecliptic from North to South in descending node on 2 June 2011 at 20:21 in ♊ Gemini.

Previous nodeNext node

Draconic month

3 days 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

3 days after previous South standstill on 18 May 2011 at 23:26 in ♐ Sagittarius, when Moon has reached southern declination of ∠-23.403°. Next 10 days the lunar orbit moves northward to face North declination of ∠23.393° in the next northern standstill on 2 June 2011 at 09:54 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 10 days

After 10 days on 1 June 2011 at 21:03 in ♊ Gemini, 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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