First Quarter on . The illuminated surface of the moon is 50% and growing larger. The lunar cycle is 7 days young.
* The exact date and time of this First Quarter phase is on 23 July 2091 at 13:02 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 ∠0° of ♏ Scorpio tropical zodiac sector.
Next Full Moon is the Buck Moon of July 2091 after 7 days on 30 July 2091 at 12:01.
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 4.4% wider than solar disc. Moon and Sun apparent angular diameters are ∠1973" and ∠1889".
The Moon is 7 days young and navigating through the first part of the current synodic month. This is lunation 1132 of Meeus index or 2085 from Brown series.
The length of this lunation is 29 days, 10 hours and 6 minutes and it is 53 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 38 minutes shorter than the mean synodic month length. It is 3 hours and 31 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 ∠280.5° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠310.2°.
Moon is at perigee at 04:02 about 13 days since last apogee on 9 July 2091 at 13:01 in ♈ Aries 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 6 August 2091 at 07:42 in ♉ Taurus.
This perigee Moon is 369 671 km (229 703 mi) away from Earth. This is the year's farthest perigee of 2091. It is 7 163 km closer than the mean perigee distance, but it is still 685 km further than the closest perigee of 21st century.
4 days after ascending node on 19 July 2091 at 10:20 in ♍ Virgo the Moon is positioned north of the ecliptic over the following 8 days until the lunar crosses the ecliptic again from North to South in descending node on 1 August 2091 at 10:40 in ♓ Pisces.
8 days since the last northern standstill on 15 July 2091 at 05:57 in ♋ Cancer when the Moon has reached North declination of ∠18.955° the lunar orbit is extending southward over the next 4 days to face maximum declination of ∠-18.921° at the point of next southern standstill on 28 July 2091 at 05:06 in ♑ Capricorn.
4 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 30 July 2091 at 12:01 in ♒ Aquarius 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