Last Quarter on . The illuminated surface of the moon is 50% and getting smaller. The lunar cycle is 22 days old.
* The exact date and time of this Last Quarter phase is on 12 October 2017 at 12:25 UTC.
The moon rises at midnight and sets at noon. It is visible to the south in the morning.
Slide horizontally to discover the moon phase on nearby dates.
Main moon phases of the following lunar cycle.
Moon is passing about ∠19° of ♋ Cancer tropical zodiac sector.
Next Full Moon is the Beaver Moon of November 2017 after 22 days on 4 November 2017 at 05:23.
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 2.2% wider than solar disc. Moon and Sun apparent angular diameters are ∠1965" and ∠1923".
The Moon is 22 days old and navigating through the last part of the current synodic month. This is lunation 219 of Meeus index or 1172 from Brown series.
The length of this lunation is 29 days, 13 hours and 42 minutes and it is 2 hours and 48 minutes 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 58 minutes longer than the mean synodic month length. It is 6 hours and 5 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 ∠79° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠114.6°.
3 days since point of perigee on 9 October 2017 at 05:51 in ♊ Gemini the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 12 days until the Moon reaches the point of next apogee on 25 October 2017 at 02:25 in ♑ Capricorn.
The Moon is 364 716 km (226 624 mi) away from Earth and getting further over the next 12 days until the point apogee when Earth-Moon distance is going to be 405 151 km (251 749 mi).
10 days after descending node on 2 October 2017 at 02:05 in ♒ Aquarius the Moon is positioned south of the ecliptic over the following 2 days until the lunar crosses the ecliptic again from South to North in ascending node on 14 October 2017 at 22:10 in ♌ Leo.
1 day since the last northern standstill on 11 October 2017 at 18:21 in ♋ Cancer when the Moon has reached North declination of ∠19.616° the lunar orbit is extending southward over the next 13 days to face maximum declination of ∠-19.741° at the point of next southern standstill on 25 October 2017 at 18:13 in ♑ Capricorn.
24 days since the beginning of this draconic month in ♌ Leo the Moon is navigating from the second to the final part of the lunar cycle.
In 7 days on 19 October 2017 at 19:12 in ♎ Libra 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