Waning Gibbous on

Moon phase on 20 April 2011 Wednesday is Waning Gibbous, 17 days old Moon is in Sagittarius.

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Moon phase for

Lunar calendar 2011 | April 2011

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

Waning Gibbous 92% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 92% and getting smaller. The 17 days old Moon is in ♐ Sagittarius.

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Moon phases for next 7 days

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Moon phase and lunation details

2 days after Full Moon

Previous main lunar phase is the Full Moon before 2 days on 18 April 2011 at 02:44.

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 is entering ♐ Sagittarius

Moon is passing first ∠3° of ♐ Sagittarius tropical zodiac sector.

Apparent angular diameter ∠1924"

Lunar disc appears visually 0.7% wider than solar disc. Moon and Sun apparent angular diameters are ∠1924" and ∠1910".

Pink Moon before 2 days

Next Full Moon is the Flower Moon of May 2011 after 26 days on 17 May 2011 at 11:09.

Upcoming main Moon phases

  • Last Quarter in Aquarius ♒ on 25 April 2011 at 02:47
  • New Moon in Taurus ♉ on 3 May 2011 at 06:51
  • First Quarter in Leo ♌ on 10 May 2011 at 20:33
  • Full Moon in Scorpio ♏ on 17 May 2011 at 11:09

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 139 / 1092

The Moon is 17 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 139 of Meeus index or 1092 from Brown series.

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Synodic month length 29.68 days

Length of current 139 lunation is 29 days, 16 hours and 18 minutes. It is 2 hours and 6 minutes longer than next lunation 140 length.

Lunation length longer than mean

Length of current synodic month is 3 hours and 34 minutes longer than the mean length of synodic month, but it is still 3 hours and 29 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠190.9°

This lunation true anomaly is ∠190.9°. At the beginning of next synodic month true anomaly will be ∠216.7°. 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 after perigee

3 days after point of perigee on 17 April 2011 at 05:59 in ♎ Libra. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 9 days, until it get to the point of next apogee on 29 April 2011 at 18:02 in ♓ Pisces.

Previous perigeeNext apogee

Distance to Moon 372 621 km

Moon is 372 621 km (231 536 mi) away from Earth on this date. Moon moves farther next 9 days until apogee, when Earth-Moon distance will reach 406 043 km (252 303 mi).

Moon before ascending node

10 days after its descending node on 9 April 2011 at 12:48 in ♊ Gemini, the Moon is following the southern part of its orbit for the next day, until it will cross the ecliptic from South to North in ascending node on 22 April 2011 at 01:05 in ♐ Sagittarius.

Previous nodeNext node

Draconic month

25 days after beginning of current draconic month in ♐ Sagittarius, the Moon is moving from the second to the final part of it.

PreviousCurrent draconic monthNext

Moon before southern standstill

11 days after previous North standstill on 8 April 2011 at 22:55 in ♊ Gemini, when Moon has reached northern declination of ∠23.569°. Next day the lunar orbit moves southward to face South declination of ∠-23.498° in the next southern standstill on 21 April 2011 at 13:40 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 12 days

After 12 days on 3 May 2011 at 06:51 in ♉ Taurus, 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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