Last Quarter on

Moon phase on 17 December 2011 Saturday is Last Quarter, 21 days old Moon is in Virgo.

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Moon phase for

Lunar calendar 2011 | December 2011

Last Quarter phase
Last Quarter phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Last Quarter 56% illuminated

Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 56% and getting smaller. The 21 days old Moon is in ♍ Virgo.

* The exact date and time of this Last Quarter phase is on 18 December 2011 at 00:48 UTC.

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Moon phases for next 7 days

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Moon phase and lunation details

Moonrise and moonset

Moon rises at midnight and sets at noon. It is visible to the south in the morning.

Moon in ♍ Virgo

Moon is passing about ∠18° of ♍ Virgo tropical zodiac sector.

Apparent angular diameter ∠1947"

Lunar disc appears visually 0.1% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1947" and ∠1950".

Wolf Moon after 22 days

Next Full Moon is the Wolf Moon of January 2012 after 22 days on 9 January 2012 at 07:30.

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 147 / 1100

The Moon is 21 days old. Earth's natural satellite is moving through the last part of current synodic month. This is lunation 147 of Meeus index or 1100 from Brown series.

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Synodic month length 29.5 days

Length of current 147 lunation is 29 days, 11 hours and 57 minutes. It is 1 hour and 36 minutes shorter than next lunation 148 length.

Lunation length shorter than mean

Length of current synodic month is 47 minutes shorter than the mean length of synodic month, but it is still 5 hours and 22 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠21.6°

This New Moon true anomaly is ∠21.6°. At beginning of next synodic month true anomaly will be ∠42.1°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon before perigee

11 days after point of apogee on 6 December 2011 at 01:13 in ♈ Aries. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 4 days, until it get to the point of next perigee on 22 December 2011 at 02:56 in ♏ Scorpio.

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Distance to Moon 368 111 km

Moon is 368 111 km (228 734 mi) away from Earth on this date. Moon moves closer next 4 days until perigee, when Earth-Moon distance will reach 364 801 km (226 677 mi).

Moon before ascending node

7 days after its descending node on 10 December 2011 at 07:04 in ♊ Gemini, the Moon is following the southern part of its orbit for the next 5 days, until it will cross the ecliptic from South to North in ascending node on 23 December 2011 at 11:36 in ♐ Sagittarius.

Previous nodeNext node

Draconic month

21 days after beginning of current draconic month in ♐ Sagittarius, the Moon is moving from the second to the final part of it.

PreviousCurrent draconic monthNext

Moon before southern standstill

6 days after previous North standstill on 10 December 2011 at 13:37 in ♊ Gemini, when Moon has reached northern declination of ∠22.554°. Next 6 days the lunar orbit moves southward to face South declination of ∠-22.554° in the next southern standstill on 23 December 2011 at 17:25 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 7 days

After 7 days on 24 December 2011 at 18:06 in ♐ Sagittarius, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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