Quarter ♌ Leo
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 ♋ Cancer.
* The exact date and time of this First Quarter phase is on 18 April 2013 at 12:31 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Lunar disc appears visually 6.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1785" and ∠1910".
Next Full Moon is the Pink Moon of April 2013 after 7 days on 25 April 2013 at 19:57.
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.
The Moon is 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 164 of Meeus index or 1117 from Brown series.
Length of current 164 lunation is 29 days, 14 hours and 53 minutes. It is 35 minutes shorter than next lunation 165 length.
Length of current synodic month is 2 hours and 9 minutes longer than the mean length of synodic month, but it is still 4 hours and 54 minutes shorter, compared to 21st century longest.
This New Moon true anomaly is ∠110.3°. At beginning of next synodic month true anomaly will be ∠143.3°. 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 15 April 2013 at 22:21 in ♊ Gemini. 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 27 April 2013 at 19:48 in ♏ Scorpio.
Moon is 401 614 km (249 551 mi) away from Earth on this date. Moon moves closer next 9 days until perigee, when Earth-Moon distance will reach 362 268 km (225 103 mi).
5 days after its descending node on 12 April 2013 at 12:12 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 8 days, until it will cross the ecliptic from South to North in ascending node on 26 April 2013 at 14:07 in ♏ Scorpio.
19 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the second to the final part of it.
3 days after previous North standstill on 15 April 2013 at 05:29 in ♊ Gemini, when Moon has reached northern declination of ∠20.189°. Next 10 days the lunar orbit moves southward to face South declination of ∠-20.170° in the next southern standstill on 28 April 2013 at 19:05 in ♐ Sagittarius.
After 7 days on 25 April 2013 at 19:57 in ♎ Libra, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.