Quarter ♉ Taurus
Moon phase on 12 January 2011 Wednesday is First Quarter, 7 days young Moon is in Aries.Share this page: twitter facebook linkedin
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 50% and growing larger. The 7 days young Moon is in ♈ Aries.
* The exact date and time of this First Quarter phase is on 12 January 2011 at 11:31 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠22° of ♈ Aries tropical zodiac sector.
Lunar disc appears visually 9.1% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1781" and ∠1951".
Next Full Moon is the Wolf Moon of January 2011 after 7 days on 19 January 2011 at 21:21.
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.
The Moon is 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 136 of Meeus index or 1089 from Brown series.
Length of current 136 lunation is 29 days, 17 hours and 28 minutes. It is 47 minutes shorter than next lunation 137 length.
Length of current synodic month is 4 hours and 44 minutes longer than the mean length of synodic month, but it is still 2 hours and 19 minutes shorter, compared to 21st century longest.
This New Moon true anomaly is ∠103.5°. At beginning of next synodic month true anomaly will be ∠139.2°. 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°).
2 days after point of apogee on 10 January 2011 at 05:38 in ♓ Pisces. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 9 days, until it get to the point of next perigee on 22 January 2011 at 00:10 in ♍ Virgo.
Moon is 402 427 km (250 057 mi) away from Earth on this date. Moon moves closer next 9 days until perigee, when Earth-Moon distance will reach 362 793 km (225 429 mi).
8 days after its ascending node on 3 January 2011 at 12:48 in ♑ Capricorn, the Moon is following the northern part of its orbit for the next 5 days, until it will cross the ecliptic from North to South in descending node on 18 January 2011 at 00:06 in ♋ Cancer.
8 days after beginning of current draconic month in ♑ Capricorn, the Moon is moving from the beginning to the first part of it.
10 days after previous South standstill on 2 January 2011 at 10:06 in ♐ Sagittarius, when Moon has reached southern declination of ∠-24.242°. Next 4 days the lunar orbit moves northward to face North declination of ∠24.221° in the next northern standstill on 16 January 2011 at 22:51 in ♊ Gemini.
After 7 days on 19 January 2011 at 21:21 in ♋ Cancer, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.