Waning Gibbous on

Moon phase on 17 July 2011 Sunday is Waning Gibbous, 17 days old Moon is in Aquarius.

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Moon phase for

Lunar calendar 2011 | July 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 Moon is in ♒ Aquarius.

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Moon phases for next 7 days

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Moon phase and lunation details

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.

2 days after Full Moon

Previous main lunar phase is the Full Moon before 2 days on 15 July 2011 at 06:40.

Moon in ♒ Aquarius

Moon is passing about ∠21° of ♒ Aquarius tropical zodiac sector.

Upcoming main Moon phases

  • Last Quarter in ♉ Taurus on
  • New Moon in ♌ Leo on
  • First Quarter in ♏ Scorpio on
  • Full Moon in ♒ Aquarius on

Buck Moon before 2 days

Next Full Moon is the Sturgeon Moon of August after 27 days on 13 August 2011 at 18:58.

Apparent angular diameter ∠1807"

Lunar disc appears visually 4.38% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1807" and ∠1888".

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 142 / 1095

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 142 of Meeus index or 1095 from Brown series.

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Synodic month length 29.41 days

Length of current 142 lunation is 29 days, 9 hours and 46 minutes. It is 1 hour and 22 minutes longer than next lunation 143.

Lunation length shorter than mean

Length of current synodic month is 2 hours and 58 minutes shorter than the mean length of synodic month, but it is still 3 hours and 11 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠283.1°

This lunation true anomaly is ∠283.1°. At the beginning of next synodic month true anomaly is ∠312.1°. The length of upcoming synodic months decreases since the true anomaly gets closer to the value of New Moon at point of perigee (∠0°or∠360°).

Moon before apogee

9 days after point of perigee on 7 July 2011 at 14:04, lunar orbit gets wider while the Moon moves outward the Earth. It keeps this direction for next 4 days until it gets to the point of apogee on 21 July 2011 at 22:46.

Distance to Moon 396 667 km

Moon is 396 667 km (246 477 mi) away from Earth on this date. At previous perigee point before 9 days, distance is 369 566 km (229 638 mi). Moon moves farther next 4 days until apogee, when Earth-Moon distance reaches 404 358 km (251 256 mi).

Moon after ascending node

4 days after its ascending node on 13 July 2011 at 02:27, the Moon follows the northern part of its orbit for the next 10 days untill it crosses the ecliptic from North to South in descending node on 27 July 2011 at 12:03.

Draconic month

4 days after its beginning, the Moon is moving from the beginning to the first part of current draconic month.

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Moon after southern standstill

4 days after previous South standstill on 12 July 2011 at 16:51, when Moon reaches southern declination of ∠-23.383°, lunar orbit moves northward for the next 9 days to face North declination of ∠23.333° in the next northern standstill on 27 July 2011 at 03:02.

Syzygy in 13 days

After 13 days the Moon is in New Moon conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy on 30 July 2011 at 18:40.

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