Waning Gibbous on

Moon phase on 16 October 2011 Sunday is Waning Gibbous, 18 days old Moon is in Gemini.

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Moon phase for

Lunar calendar 2011 | October 2011

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

Waning Gibbous 83% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 83% and getting smaller. The 18 days old Moon is in ♊ Gemini.

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Moon phases for next 7 days

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Moon phase and lunation details

4 days after Full Moon

Previous main lunar phase is the Full Moon before 4 days on 12 October 2011 at 02:06.

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 ♊ Gemini

Moon is passing about ∠11° of ♊ Gemini tropical zodiac sector.

Apparent angular diameter ∠1801"

Lunar disc appears visually 6.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1801" and ∠1925".

Hunter Moon before 4 days

Next Full Moon is the Beaver Moon of November 2011 after 25 days on 10 November 2011 at 20:16.

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 145 / 1098

The Moon is 18 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 145 of Meeus index or 1098 from Brown series.

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Synodic month length 29.37 days

The length of the lunation is 29 days, 8 hours and 47 minutes. It is 1 hour and 27 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length shorter than mean

The length of the current synodic month is 3 hours and 57 minutes shorter than the mean synodic month length. It is 2 hours and 12 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠350.1°

At the beginning of the lunation cycle the true anomaly is ∠350.1°. At the beginning of next synodic month the true anomaly is going to be ∠5.3°.

Moon after apogee

4 days after point of apogee on 12 October 2011 at 11:43 in ♈ Aries. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 10 days, until the Moon reaches the point of next perigee on 26 October 2011 at 12:26 in ♎ Libra.

Previous apogeeNext perigee

Distance to Moon 398 045 km

The Moon is 398 045 km (247 334 mi) away from Earth and getting closer over the next 10 days until the point perigee when Earth-Moon distance is going to be 357 051 km (221 861 mi).

Moon in descending node

Moon is in descending node in ♊ Gemini at 21:01 crossing the ecliptic from North to South to meet ascending node 13 days later on 29 October 2011 at 14:59 in ♐ Sagittarius.

Previous nodeNext node

Draconic month

14 days since the beginning of current draconic month in ♐ Sagittarius, the Moon is navigating from the second to the final part of the cycle.

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Moon before northern standstill

14 days since the previous standstill on 2 October 2011 at 11:38 in ♐ Sagittarius when the Moon has reached South declination of ∠-22.791°, the lunar orbit is extending northward over the next day to face maximum declination of ∠22.665° at the point of next northern standstill on 17 October 2011 at 02:06 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 10 days

In 10 days on 26 October 2011 at 19:56 in ♎ Libra the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.

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