Full Moon on

Moon phase on 20 March 2011 Sunday is Full Moon, 15 days old Moon is in Libra.

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Moon phase for

Lunar calendar 2011 | March 2011

Full Moon phase
Full Moon phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Full Moon 99% illuminated

Full Moon is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 99%. The Moon is in ♎ Libra.

* The exact date and time of this Full Moon phase is on 19 March 2011 at 18:10 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 sunset and sets at sunrise. It is visible all night and it is high in the sky around midnight.

Moon in ♎ Libra

Moon is passing about ∠10° of ♎ Libra tropical zodiac sector.

Upcoming main Moon phases

  • Last Quarter in ♑ Capricorn on
  • New Moon in ♈ Aries on
  • First Quarter in ♋ Cancer on
  • Full Moon in ♎ Libra on

It is Worm Moon

The Full Moon on this date is the Worm Moon of March.

Apparent angular diameter ∠1972"

Lunar disc appears visually 2.31% wider than solar disc. Moon and Sun apparent angular diameters are ∠1972" and ∠1927".

Spring tide

There is high Full Moon ocean tide on this date. Combined Sun and Moon gravitational tidal force working on Earth is strong, because of the Sun-Earth-Moon syzygy alignment.

Lunation 138 / 1091

Moon is 15 days old. Earth's natural satellite is moving through the middle part of current synodic month. This is lunation 138 of Meeus index or 1091 from Brown series.

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Synodic month length 29.74 days

Length of current 138 lunation is 29 days, 17 hours and 46 minutes. It is 1 hour and 28 minutes longer than next lunation 139.

Lunation length longer than mean

Length of current synodic month is 5 hours and 2 minutes longer than the mean length of synodic month, but it is still 2 hours and 1 minute shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠167°

This lunation true anomaly is ∠167°. At the beginning of next synodic month true anomaly is ∠190.9°. The length of upcoming synodic months decreases since the true anomaly gets closer to the value of New Moon at point of perigee (∠0°or∠360°).

Moon after perigee

1 day after point of perigee on 19 March 2011 at 19:09, lunar orbit gets wider while the Moon moves outward the Earth. It keeps this direction for next 12 days until it gets to the point of apogee on 2 April 2011 at 09:00.

Distance to Moon 363 574 km

Moon is 363 574 km (225 914 mi) away from Earth on this date. At previous perigee point before 1 day, distance is 356 578 km (221 567 mi). Moon moves farther next 12 days until apogee, when Earth-Moon distance reaches 406 656 km (252 684 mi).

Moon before ascending node

7 days after its descending node on 13 March 2011 at 11:55, the Moon follows the southern part of its orbit for the next 5 days untill it crosses the ecliptic from South to North in ascending node on 25 March 2011 at 21:09.

Draconic month

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

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Moon before southern standstill

7 days after previous North standstill on 12 March 2011 at 17:06, when Moon reaches northern declination of ∠23.825°, lunar orbit moves southward for the next 4 days to face South declination of ∠-23.716° in the next southern standstill on 25 March 2011 at 05:02.

Sun-Earth-Moon syzygy

The Moon is in Full Moon opposition with the Sun on this date and this alignment forms Sun-Earth-Moon syzygy.

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