First Quarter on . The illuminated surface of the moon is 49% and growing larger. The lunar cycle is 7 days young.
* The exact date and time of this First Quarter phase is on 19 December 2099 at 14:22 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 leaving the last ∠3° of ♓ Pisces tropical zodiac sector and will enter ♈ Aries later.
Next Full Moon is the Cold Moon of December 2099 after 8 days on 27 December 2099 at 12:58.
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 9.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1771" and ∠1950".
The Moon is 7 days young and navigating through the first part of the current synodic month. This is lunation 1236 of Meeus index or 2189 from Brown series.
The length of this lunation is 29 days, 13 hours and 47 minutes and it is 2 hours and 12 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 3 minutes longer than the mean synodic month length. It is 6 hours shorter compared to 21st century's longest synodic month length.
The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠49.8° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠81.3°.
10 days since point of perigee on 8 December 2099 at 17:50 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 day until the Moon reaches the point of next apogee on 20 December 2099 at 13:16 in ♈ Aries.
The Moon is 404 808 km (251 536 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 404 339 km (251 245 mi).
Moon is in ascending node in ♓ Pisces at 01:02 crossing the ecliptic from South to North. Lunar position remains north of if for the upcoming 13 days until Moon's next descending node later on 1 January 2100 at 21:13 in ♍ Virgo.
6 days since the last southern standstill on 12 December 2099 at 13:59 in ♐ Sagittarius when the Moon has reached South declination of ∠-28.351° the lunar orbit is extending northward over the next 7 days to face maximum declination of ∠28.345° at the point of next northern standstill on 26 December 2099 at 23:34 in ♊ Gemini.
At 01:02 in the point ot ascending node the Moon is completing the last draconic month and is entering a new one while the lunar orbit is crossing the ecliptic from South to North.
In 8 days on 27 December 2099 at 12:58 in ♋ Cancer 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