Waning Gibbous on

Moon phase on 19 May 2011 Thursday is Waning Gibbous, 17 days old Moon is in Sagittarius.

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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 95% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 95% 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 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 ♐ Sagittarius

Moon is passing about ∠25° of ♐ Sagittarius tropical zodiac sector.

Apparent angular diameter ∠1892"

Lunar disc appears visually 0.2% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1892" and ∠1896".

Flower Moon before 2 days

Next Full Moon is the Strawberry Moon of June 2011 after 27 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 17 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 after perigee

4 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 7 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 378 919 km

Moon is 378 919 km (235 449 mi) away from Earth on this date. Moon moves farther next 7 days until apogee, when Earth-Moon distance will reach 405 006 km (251 659 mi).

Moon in ascending node

Moon is in ascending node in ♐ Sagittarius at 09:03 on this date, it crosses the ecliptic from South to North. Moon will follow the northern part of its orbit for the next 14 days to meet descending node on 2 June 2011 at 20:21 in ♊ Gemini.

Previous nodeNext node

New draconic month

At 09:03 on this date the Moon is completing its previous draconic month and is entering the new one.


Moon after southern standstill

1 day after previous South standstill on 18 May 2011 at 23:26 in ♐ Sagittarius, when Moon has reached southern declination of ∠-23.403°. Next 13 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 13 days

After 13 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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