Waning Gibbous on . The illuminated surface of the moon is 79% and getting smaller. The lunar cycle is 19 days old.
The 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.
Slide horizontally to discover the moon phase on nearby dates.
Main moon phases of the following lunar cycle.
Moon is leaving the last ∠2° of ♌ Leo tropical zodiac sector and will enter ♍ Virgo later.
Previous main lunar phase is the Full Moon before 4 days on 21 December 2010 at 08:13.
Next Full Moon is the Wolf Moon of January 2011 after 25 days on 19 January 2011 at 21:21.
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.
Lunar disc appears visually 0.7% wider than solar disc. Moon and Sun apparent angular diameters are ∠1965" and ∠1951".
The Moon is 19 days old and navigating from the middle to the last part of the current synodic month. This is lunation 135 of Meeus index or 1088 from Brown series.
The length of this lunation is 29 days, 15 hours and 27 minutes and it is 2 hours and 1 minute shorter than the upcoming lunation's length. The lengths of the following synodic months are going to increase with the lunar orbit true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).
The length of the current synodic month is 2 hours and 43 minutes longer than the mean synodic month length. It is 4 hours and 20 minutes shorter compared to 21st century's longest synodic month length.
The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠67° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠103.5°.
Moon is at perigee at 12:24 about 12 days since last apogee on 13 December 2010 at 08:34 in ♓ Pisces the lunar orbit is going to widen while the Moon is moving away from the Earth over the upcoming 15 days until point of next apogee on 10 January 2011 at 05:38 in ♓ Pisces.
This perigee Moon is 368 463 km (228 952 mi) away from Earth. It is 5 955 km closer than the mean perigee distance, but it is still 1 893 km further than the closest perigee of 21st century.
3 days after descending node on 21 December 2010 at 14:08 in ♊ Gemini the Moon is positioned south of the ecliptic over the following 9 days until the lunar crosses the ecliptic again from South to North in ascending node on 3 January 2011 at 12:48 in ♑ Capricorn.
4 days since the last northern standstill on 20 December 2010 at 12:37 in ♊ Gemini when the Moon has reached North declination of ∠24.238° the lunar orbit is extending southward over the next 7 days to face maximum declination of ∠-24.242° at the point of next southern standstill on 2 January 2011 at 10:06 in ♐ Sagittarius.
18 days since the beginning of this draconic month in ♑ Capricorn the Moon is navigating from the second to the final part of the lunar cycle.
In 9 days on 4 January 2011 at 09:03 in ♑ Capricorn the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.
Parts of this Lunar Calendar are based on Planetary Ephemeris Data Courtesy of Fred Espenak, www.Astropixels.com
Moon phase image credit to NASA/Goddard Space Flight Center Scientific Visualization Studio, svs.gsfc.nasa.gov
