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

The length of the lunation is 29 days, 8 hours and 24 minutes. It is 19 minutes longer than the next lunation's length. The lengths of the following synodic months are going to decreasing with the true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).

Lunation length shorter than mean

The length of the current synodic month is 4 hours and 20 minutes shorter than the mean synodic month length. It is 1 hour and 49 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠312.1°

At the beginning of the lunation cycle the true anomaly is ∠312.1°. At the beginning of next synodic month the true anomaly is going to be ∠333.4°.

Moon after perigee

6 days after point of perigee on 2 August 2011 at 20:59 in ♍ Virgo. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 9 days, until the Moon reaches the point of next apogee on 18 August 2011 at 16:23 in ♈ Aries.

Previous perigeeNext apogee

Distance to Moon 376 296 km

The Moon is 376 296 km (233 819 mi) away from Earth and getting further over the next 9 days until the point apogee when Earth-Moon distance is going to be 405 161 km (251 755 mi).

Moon in ascending node

Moon is in ascending node in ♐ Sagittarius at 06:35 crossing the ecliptic from South to North to meet descending node 14 days later on 23 August 2011 at 17:23 in ♊ Gemini.

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New draconic month

At 06:35 the Moon completes the previous draconic month and enters the new one.

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Moon after southern standstill

1 day since the previous standstill on 8 August 2011 at 23:15 in ♐ Sagittarius when the Moon has reached South declination of ∠-23.270°, the lunar orbit is extending northward over the next 14 days to face maximum declination of ∠23.149° at the point of next northern standstill on 23 August 2011 at 12:17 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 4 days

In 4 days on 13 August 2011 at 18:58 in ♒ Aquarius the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon syzygy alignment.

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