First Quarter on

Moon phase on 13 March 2011 Sunday is First Quarter, 8 days young Moon is in Gemini.

Share this page: twitter facebook google+ linkedin

Moon phase for

Lunar calendar 2011 | March 2011

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

First Quarter 55% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 55% and growing larger. The 8 days young Moon is in ♊ Gemini.

* The exact date and time of this First Quarter phase is on 12 March 2011 at 23:45 UTC.

Previous date | Moon Today | Next date

Moon phases for next 7 days

7 days ago | 7 days after

Moon phase and lunation details

Moonrise and moonset

Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.

Moon in ♊ Gemini

Moon is leaving the last ∠1° of ♊ Gemini tropical zodiac sector and will enter ♋ Cancer later.

Apparent angular diameter ∠1870"

Lunar disc appears visually 3.2% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1870" and ∠1930".

Worm Moon after 6 days

Next Full Moon is the Worm Moon of March 2011 after 6 days on 19 March 2011 at 18:10.

Upcoming main Moon phases

  • Full Moon in Virgo ♍ on 19 March 2011 at 18:10
  • Last Quarter in Capricorn ♑ on 26 March 2011 at 12:07
  • New Moon in Aries ♈ on 3 April 2011 at 14:32
  • First Quarter in Cancer ♋ on 11 April 2011 at 12:05

Moderate tide

There is medium ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at very acute angle, so their combined tidal force is moderate.

Lunation 138 / 1091

The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 138 of Meeus index or 1091 from Brown series.

PreviousCurrent lunationNext

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 length.

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 will be ∠190.9°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).

Moon before perigee

7 days after point of apogee on 6 March 2011 at 07:50 in ♈ Aries. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 6 days, until it get to the point of next perigee on 19 March 2011 at 19:09 in ♍ Virgo.

Previous apogeeNext perigee

Distance to Moon 383 334 km

Moon is 383 334 km (238 193 mi) away from Earth on this date. Moon moves closer next 6 days until perigee, when Earth-Moon distance will reach 356 578 km (221 567 mi).

Moon in descending node

Moon is in descending node in ♊ Gemini at 11:55 on this date, it crosses the ecliptic from North to South. Moon will follow the southern part of its orbit for the next 12 days to meet ascending node on 25 March 2011 at 21:09 in ♐ Sagittarius.

Previous nodeNext node

Draconic month

14 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 after northern standstill

1 day after previous North standstill on 12 March 2011 at 17:06 in ♊ Gemini, when Moon has reached northern declination of ∠23.825°. Next 11 days the lunar orbit moves southward to face South declination of ∠-23.716° in the next southern standstill on 25 March 2011 at 05:02 in ♐ Sagittarius.

Previous standstillNext standstill

Syzygy in 6 days

After 6 days on 19 March 2011 at 18:10 in ♍ Virgo, the Moon will be in First Quarter geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

Previous syzygyNext syzygy

Share this page: twitter facebook google+ linkedin
Back to: Top of page