Gibbous ♎ Libra
Moon phase on 31 January 2013 Thursday is Waning Gibbous, 19 days old Moon is in Libra.Share this page: twitter facebook linkedin
Previous main lunar phase is the Full Moon before 4 days on 27 January 2013 at 04:38.
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.
Moon is passing first ∠3° of ♎ Libra tropical zodiac sector.
Lunar disc appears visually 2.5% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1899" and ∠1947".
Next Full Moon is the Snow Moon of February 2013 after 25 days on 25 February 2013 at 20:26.
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 19 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 161 of Meeus index or 1114 from Brown series.
Length of current 161 lunation is 29 days, 11 hours and 36 minutes. It is 55 minutes shorter than next lunation 162 length.
Length of current synodic month is 1 hour and 8 minutes shorter than the mean length of synodic month, but it is still 5 hours and 1 minute longer, compared to 21st century shortest.
This New Moon true anomaly is ∠23.3°. At beginning of next synodic month true anomaly will be ∠44.2°. 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°).
9 days after point of apogee on 22 January 2013 at 10:52 in ♊ Gemini. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 7 days, until it get to the point of next perigee on 7 February 2013 at 12:09 in ♑ Capricorn.
Moon is 377 370 km (234 487 mi) away from Earth on this date. Moon moves closer next 7 days until perigee, when Earth-Moon distance will reach 365 314 km (226 996 mi).
10 days after its descending node on 21 January 2013 at 01:19 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 3 days, until it will cross the ecliptic from South to North in ascending node on 4 February 2013 at 02:14 in ♏ Scorpio.
23 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the second to the final part of it.
8 days after previous North standstill on 23 January 2013 at 05:12 in ♊ Gemini, when Moon has reached northern declination of ∠20.816°. Next 5 days the lunar orbit moves southward to face South declination of ∠-20.704° in the next southern standstill on 6 February 2013 at 00:27 in ♐ Sagittarius.
After 9 days on 10 February 2013 at 07:20 in ♒ Aquarius, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.