Last Quarter on . The illuminated surface of the moon is 47% and getting smaller. The lunar cycle is 22 days old.
* The exact date and time of this Last Quarter phase is on 13 September 2017 at 06:25 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 ∠24° of ♊ Gemini tropical zodiac sector.
Next Full Moon is the Hunter Moon of October 2017 after 22 days on 5 October 2017 at 18:40.
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 3.4% wider than solar disc. Moon and Sun apparent angular diameters are ∠1973" and ∠1907".
The Moon is 22 days old and navigating through the last part of the current synodic month. This is lunation 218 of Meeus index or 1171 from Brown series.
The length of this lunation is 29 days, 11 hours and 1 minute and it is 2 hours and 42 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 1 hour and 44 minutes shorter than the mean synodic month length. It is 4 hours and 25 minutes longer compared to 21st century's shortest synodic month length.
The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠49.5° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠79°.
Moon is at perigee at 16:04 about 14 days since last apogee on 30 August 2017 at 11:25 in ♐ Sagittarius the lunar orbit is going to widen while the Moon is moving away from the Earth over the upcoming 13 days until point of next apogee on 27 September 2017 at 06:49 in ♐ Sagittarius.
This perigee Moon is 369 856 km (229 818 mi) away from Earth. This is the year's farthest perigee of 2017. It is 7 348 km closer than the mean perigee distance, but it is still 500 km further than the closest perigee of 21st century.
8 days after descending node on 4 September 2017 at 18:41 in ♒ Aquarius the Moon is positioned south of the ecliptic over the following 4 days until the lunar crosses the ecliptic again from South to North in ascending node on 17 September 2017 at 18:28 in ♌ Leo.
12 days since the last southern standstill on 1 September 2017 at 02:03 in ♑ Capricorn when the Moon has reached South declination of ∠-19.393° the lunar orbit is extending northward over the next day to face maximum declination of ∠19.438° at the point of next northern standstill on 14 September 2017 at 13:00 in ♋ Cancer.
23 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 6 days on 20 September 2017 at 05:30 in ♍ Virgo 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
