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 17 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

2 days after Full Moon

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

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 ∠21° of ♒ Aquarius tropical zodiac sector.

Apparent angular diameter ∠1807"

Lunar disc appears visually 4.4% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1807" and ∠1888".

Buck Moon before 2 days

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

Upcoming main Moon phases

  • Last Quarter in Taurus ♉ on 23 July 2011 at 05:02
  • New Moon in Leo ♌ on 30 July 2011 at 18:40
  • First Quarter in Scorpio ♏ on 6 August 2011 at 11:08
  • Full Moon in Aquarius ♒ on 13 August 2011 at 18:58

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 142 / 1095

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 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 length.

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 will be ∠312.1°. 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

9 days after point of perigee on 7 July 2011 at 14:04 in ♍ Virgo. 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 21 July 2011 at 22:46 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 396 667 km

Moon is 396 667 km (246 477 mi) away from Earth on this date. Moon moves farther next 4 days until apogee, when Earth-Moon distance will reach 404 358 km (251 256 mi).

Moon after ascending node

4 days after its ascending node on 13 July 2011 at 02:27 in ♐ Sagittarius, the Moon is following the northern part of its orbit for the next 10 days, until it will cross the ecliptic from North to South in descending node on 27 July 2011 at 12:03 in ♊ Gemini.

Previous nodeNext node

Draconic month

4 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

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

Previous standstillNext standstill

Syzygy in 13 days

After 13 days on 30 July 2011 at 18:40 in ♌ Leo, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

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