Gibbous ♒ Aquarius
Moon phase on 12 October 2013 Saturday is First Quarter, 8 days young Moon is in Capricorn.Share this page: twitter facebook linkedin
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 56% and growing larger. The 8 days young Moon is in ♑ Capricorn.
* The exact date and time of this First Quarter phase is on 11 October 2013 at 23:02 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Lunar disc appears visually 2.4% wider than solar disc. Moon and Sun apparent angular diameters are ∠1970" and ∠1923".
Next Full Moon is the Hunter Moon of October 2013 after 6 days on 18 October 2013 at 23:38.
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 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 170 of Meeus index or 1123 from Brown series.
Length of current 170 lunation is 29 days, 12 hours and 15 minutes. It is 43 minutes longer than next lunation 171 length.
Length of current synodic month is 29 minutes shorter than the mean length of synodic month, but it is still 5 hours and 40 minutes longer, compared to 21st century shortest.
This lunation true anomaly is ∠285.3°. At the beginning of next synodic month true anomaly will be ∠315°. 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°).
1 day after point of perigee on 10 October 2013 at 23:06 in ♐ Sagittarius. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 13 days, until it get to the point of next apogee on 25 October 2013 at 14:25 in ♋ Cancer.
Moon is 363 773 km (226 038 mi) away from Earth on this date. Moon moves farther next 13 days until apogee, when Earth-Moon distance will reach 404 561 km (251 383 mi).
5 days after its ascending node on 6 October 2013 at 22:08 in ♏ Scorpio, the Moon is following the northern part of its orbit for the next 7 days, until it will cross the ecliptic from North to South in descending node on 19 October 2013 at 21:47 in ♉ Taurus.
5 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the beginning to the first part of it.
2 days after previous South standstill on 9 October 2013 at 23:52 in ♐ Sagittarius, when Moon has reached southern declination of ∠-19.537°. Next 10 days the lunar orbit moves northward to face North declination of ∠19.509° in the next northern standstill on 23 October 2013 at 09:13 in ♊ Gemini.
After 6 days on 18 October 2013 at 23:38 in ♈ Aries, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.