Last Quarter on . The illuminated surface of the moon is 54% and getting smaller. The lunar cycle is 21 days old.
* The exact date and time of this Last Quarter phase is on 27 August 2100 at 22:36 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 leaving the last ∠1° of ♉ Taurus tropical zodiac sector and will enter ♊ Gemini later.
Next Full Moon is the Harvest Moon of September 2100 after 21 days on 18 September 2100 at 11:32.
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 6.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1774" and ∠1899".
The Moon is 21 days old and navigating through the last part of the current synodic month. This is lunation 1244 of Meeus index or 2197 from Brown series.
The length of this lunation is 29 days, 9 hours and 48 minutes and it is 35 minutes longer than the upcoming lunation's length. The lengths of the following synodic months are going to decrease with the lunar orbit true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).
The length of the current synodic month is 2 hours and 56 minutes shorter than the mean synodic month length. It is 3 hours and 13 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 ∠294.6° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠320.8°.
1 day since point of apogee on 25 August 2100 at 23:00 in ♉ Taurus the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 10 days until the Moon reaches the point of next perigee on 6 September 2100 at 19:23 in ♎ Libra.
The Moon is 403 995 km (251 031 mi) away from Earth and getting closer over the next 10 days until the point perigee when Earth-Moon distance is going to be 363 868 km (226 097 mi).
6 days after ascending node on 20 August 2100 at 18:39 in ♓ Pisces the Moon is positioned north of the ecliptic over the following 7 days until the lunar crosses the ecliptic again from North to South in descending node on 4 September 2100 at 02:42 in ♍ Virgo.
12 days since the last southern standstill on 15 August 2100 at 09:13 in ♐ Sagittarius when the Moon has reached South declination of ∠-28.334° the lunar orbit is extending northward over the next 2 days to face maximum declination of ∠28.356° at the point of next northern standstill on 29 August 2100 at 17:37 in ♊ Gemini.
6 days since the beginning of this draconic month in ♓ Pisces the Moon is navigating from the beginning to the first part of the lunar cycle.
In 7 days on 4 September 2100 at 08:49 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