First Quarter on . The illuminated surface of the moon is 55% and growing larger. The lunar cycle is 8 days young.
* The exact date and time of this First Quarter phase is on 20 September 2091 at 00:10 UTC.
The moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Slide horizontally to discover the moon phase on nearby dates.
Main moon phases of the following lunar cycle.
Moon is passing first ∠4° of ♑ Capricorn tropical zodiac sector.
Next Full Moon is the Harvest Moon of September 2091 after 7 days on 27 September 2091 at 15:56.
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 0.6% wider than solar disc. Moon and Sun apparent angular diameters are ∠1923" and ∠1911".
The Moon is 8 days young and navigating through the first part of the current synodic month. This is lunation 1134 of Meeus index or 2087 from Brown series.
The length of this lunation is 29 days, 8 hours and 54 minutes and it is 19 minutes shorter than the upcoming lunation's length. This is the year's shortest synodic month of 2091. 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 3 hours and 50 minutes shorter than the mean synodic month length. It is 2 hours and 19 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 ∠332.3° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠349.5°.
5 days since point of perigee on 15 September 2091 at 01:40 in ♎ Libra the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 10 days until the Moon reaches the point of next apogee on 30 September 2091 at 16:41 in ♉ Taurus.
The Moon is 372 655 km (231 557 mi) away from Earth and getting further over the next 10 days until the point apogee when Earth-Moon distance is going to be 406 084 km (252 329 mi).
8 days after ascending node on 12 September 2091 at 03:32 in ♍ Virgo the Moon is positioned north of the ecliptic over the following 4 days until the lunar crosses the ecliptic again from North to South in descending node on 25 September 2091 at 00:30 in ♓ Pisces.
At 16:58 the Moon is meeting its standstill point to reach South declination of ∠-18.923°. Over the upcoming 14 days the lunar orbit is going to tilt northward to face maximum declination of ∠19.007° at the point of next northern standstill in ♋ Cancer on 5 October 2091 at 08:31.
8 days since the beginning of this draconic month in ♍ Virgo the Moon is navigating from the beginning to the first part of the lunar cycle.
In 7 days on 27 September 2091 at 15:56 in ♓ Pisces the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon 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