Waning Gibbous on

Moon phase on 18 October 2011 Tuesday is Waning Gibbous, 20 days old Moon is in Cancer.

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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 66% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 66% and getting smaller. The Moon is in ♋ Cancer.

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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.

6 days after Full Moon

Previous main lunar phase is the Full Moon before 6 days on 12 October 2011 at 02:06.

Moon in ♋ Cancer

Moon is passing about ∠5° of ♋ Cancer tropical zodiac sector.

Upcoming main Moon phases

Hunter Moon before 6 days

Next Full Moon is the Beaver Moon of November after 23 days on 10 November 2011 at 20:16.

Apparent angular diameter ∠1839"

Lunar disc appears visually 4.64% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1839" and ∠1926".

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

Moon is 20 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

Length of current 145 lunation is 29 days, 8 hours and 47 minutes. It is 1 hour and 27 minutes shorter than next lunation 146.

Lunation length shorter than mean

Length of current synodic month is 3 hours and 57 minutes shorter than the mean length of synodic month, but it is still 2 hours and 12 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠350.1°

This lunation true anomaly is ∠350.1°. At the beginning of next synodic month true anomaly is ∠5.3°. The length of upcoming synodic months increases since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon after apogee

6 days after point of apogee on 12 October 2011 at 11:43, lunar orbit gets closer while the Moon moves inward the Earth. It keeps this direction for next 8 days until it gets to the point of perigee on 26 October 2011 at 12:26.

Distance to Moon 389 822 km

Moon is 389 822 km (242 224 mi) away from Earth on this date. At previous apogee point before 6 days, distance is 406 435 km (252 547 mi). Moon moves closer next 8 days until perigee, when Earth-Moon distance reaches 357 051 km (221 861 mi).

Moon after descending node

1 day after its descending node on 16 October 2011 at 21:01, the Moon follows the southern part of its orbit for the next 11 days untill it crosses the ecliptic from South to North in ascending node on 29 October 2011 at 14:59.

Draconic month

16 days after its beginning, the Moon is moving from the second to the final part of current draconic month.

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Moon after northern standstill

1 day after previous North standstill on 17 October 2011 at 02:06, when Moon reaches northern declination of ∠22.665°, lunar orbit moves southward for the next 11 days to face South declination of ∠-22.609° in the next southern standstill on 29 October 2011 at 20:17.

Syzygy in 8 days

After 8 days the Moon is in New Moon conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy on 26 October 2011 at 19:56.

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