Gibbous ♏ Scorpio
Moon phase on 21 February 2011 Monday is Waning Gibbous, 18 days old Moon is in Libra.Share this page: twitter facebook linkedin
Previous main lunar phase is the Full Moon before 3 days on 18 February 2011 at 08:36.
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.
Moon is passing about ∠17° of ♎ Libra tropical zodiac sector.
Lunar disc appears visually 1.4% wider than solar disc. Moon and Sun apparent angular diameters are ∠1967" and ∠1940".
Next Full Moon is the Worm Moon of March 2011 after 26 days on 19 March 2011 at 18:10.
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 18 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 137 of Meeus index or 1090 from Brown series.
Length of current 137 lunation is 29 days, 18 hours and 15 minutes. This is the year's longest synodic month of 2011. It is 29 minutes longer than next lunation 138 length.
Length of current synodic month is 5 hours and 31 minutes longer than the mean length of synodic month, but it is still 1 hour and 32 minutes shorter, compared to 21st century longest.
This New Moon true anomaly is ∠139.2°. At beginning of next synodic month true anomaly will be ∠167°. 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 perigee on 19 February 2011 at 07:27 in ♍ Virgo. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 12 days, until it get to the point of next apogee on 6 March 2011 at 07:50 in ♈ Aries.
Moon is 364 331 km (226 385 mi) away from Earth on this date. Moon moves farther next 12 days until apogee, when Earth-Moon distance will reach 406 584 km (252 640 mi).
7 days after its descending node on 14 February 2011 at 08:14 in ♋ Cancer, the Moon is following the southern part of its orbit for the next 5 days, until it will cross the ecliptic from South to North in ascending node on 26 February 2011 at 20:19 in ♐ Sagittarius.
21 days after beginning of current draconic month in ♐ Sagittarius, the Moon is moving from the second to the final part of it.
8 days after previous North standstill on 13 February 2011 at 09:00 in ♊ Gemini, when Moon has reached northern declination of ∠24.080°. Next 4 days the lunar orbit moves southward to face South declination of ∠-23.985° in the next southern standstill on 25 February 2011 at 22:13 in ♐ Sagittarius.
After 11 days on 4 March 2011 at 20:46 in ♓ Pisces, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.