First Quarter on . The illuminated surface of the moon is 62% and growing larger. The lunar cycle is 8 days young.
* The exact date and time of this First Quarter phase is on 10 October 2100 at 08:33 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 ∠2° of ♒ Aquarius tropical zodiac sector.
Next Full Moon is the Hunter Moon of October 2100 after 6 days on 18 October 2100 at 04:06.
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 1.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1890" and ∠1922".
The Moon is 8 days young and navigating through the first part of the current synodic month. This is lunation 1246 of Meeus index or 2199 from Brown series.
The length of this lunation is 29 days, 9 hours and 12 minutes and it is 34 minutes shorter than the upcoming lunation's length. This is the year's shortest synodic month of 2100. 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 32 minutes shorter than the mean synodic month length. It is 2 hours and 37 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 ∠340.4° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠356.4°.
6 days since point of perigee on 4 October 2100 at 21:58 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 8 days until the Moon reaches the point of next apogee on 20 October 2100 at 04:03 in ♉ Taurus.
The Moon is 379 212 km (235 631 mi) away from Earth and getting further over the next 8 days until the point apogee when Earth-Moon distance is going to be 406 359 km (252 500 mi).
9 days after descending node on 1 October 2100 at 12:43 in ♍ Virgo 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 2100 at 06:36 in ♓ Pisces.
2 days since the last southern standstill on 8 October 2100 at 20:58 in ♐ Sagittarius when the Moon has reached South declination of ∠-28.233° the lunar orbit is extending northward over the next 11 days to face maximum declination of ∠28.129° at the point of next northern standstill on 23 October 2100 at 08:12 in ♊ Gemini.
24 days since the beginning of this draconic month in ♓ Pisces the Moon is navigating from the second to the final part of the lunar cycle.
In 6 days on 18 October 2100 at 04:06 in ♈ Aries 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