Waxing Gibbous on

Moon phase on 9 August 2011 Tuesday is Waxing Gibbous, 10 days young Moon is in Sagittarius.

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Moon phase for

Lunar calendar 2011 | August 2011

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

Waxing Gibbous 81% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 81% and growing larger. The 10 days young Moon is in ♐ Sagittarius.

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Moon phases for next 7 days

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Moon phase and lunation details

3 days after First Quarter

Previous main lunar phase is the First Quarter before 3 days on 6 August 2011 at 11:08.

Moonrise and moonset

Moon rises in the afternoon and sets after midnight to early morning. It is visible to the southeast in early evening and it is up for most of the night.

Moon in ♐ Sagittarius

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

Apparent angular diameter ∠1905"

Lunar disc appears visually 0.6% wider than solar disc. Moon and Sun apparent angular diameters are ∠1905" and ∠1893".

Sturgeon Moon after 4 days

Next Full Moon is the Sturgeon Moon of August 2011 after 4 days on 13 August 2011 at 18:58.

Upcoming main Moon phases

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 143 / 1096

The Moon is 10 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 143 of Meeus index or 1096 from Brown series.

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Synodic month length 29.35 days

Length of current 143 lunation is 29 days, 8 hours and 24 minutes. It is 19 minutes longer than next lunation 144 length.

Lunation length shorter than mean

Length of current synodic month is 4 hours and 20 minutes shorter than the mean length of synodic month, but it is still 1 hour and 49 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠312.1°

This lunation true anomaly is ∠312.1°. At the beginning of next synodic month true anomaly will be ∠333.4°. 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

6 days after point of perigee on 2 August 2011 at 20:59 in ♍ Virgo. 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 18 August 2011 at 16:23 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 376 296 km

Moon is 376 296 km (233 819 mi) away from Earth on this date. Moon moves farther next 9 days until apogee, when Earth-Moon distance will reach 405 161 km (251 755 mi).

Moon in ascending node

Moon is in ascending node in ♐ Sagittarius at 06:35 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 23 August 2011 at 17:23 in ♊ Gemini.

Previous nodeNext node

New draconic month

At 06:35 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 8 August 2011 at 23:15 in ♐ Sagittarius, when Moon has reached southern declination of ∠-23.270°. Next 14 days the lunar orbit moves northward to face North declination of ∠23.149° in the next northern standstill on 23 August 2011 at 12:17 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 4 days

After 4 days on 13 August 2011 at 18:58 in ♒ Aquarius, 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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