Gibbous ♊ Gemini
Moon phase on 21 October 2013 Monday is Waning Gibbous, 17 days old Moon is in Taurus.Share this page: twitter facebook linkedin
Previous main lunar phase is the Full Moon before 2 days on 18 October 2013 at 23:38.
Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.
Lunar disc appears visually 6.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1800" and ∠1928".
Next Full Moon is the Beaver Moon of November 2013 after 27 days on 17 November 2013 at 15:16.
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 17 days old. Earth's natural satellite is moving from the middle to the last 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°).
10 days 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 4 days, until it get to the point of next apogee on 25 October 2013 at 14:25 in ♋ Cancer.
Moon is 398 120 km (247 380 mi) away from Earth on this date. Moon moves farther next 4 days until apogee, when Earth-Moon distance will reach 404 561 km (251 383 mi).
1 day after its descending node on 19 October 2013 at 21:47 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 12 days, until it will cross the ecliptic from South to North in ascending node on 3 November 2013 at 06:52 in ♏ Scorpio.
14 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the second to the final part of it.
11 days after previous South standstill on 9 October 2013 at 23:52 in ♐ Sagittarius, when Moon has reached southern declination of ∠-19.537°. Next day 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 13 days on 3 November 2013 at 12:50 in ♏ Scorpio, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.