Waning Gibbous on . The illuminated surface of the moon is 98% and getting smaller. The lunar cycle is 16 days old.
The moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.
Slide horizontally to discover the moon phase on nearby dates.
Main moon phases of the following lunar cycle.
Moon is leaving the last ∠4° of ♌ Leo tropical zodiac sector and will enter ♍ Virgo later.
Previous main lunar phase is the Full Moon before 1 day on 26 January 2100 at 02:49.
Next Full Moon is the Snow Moon of February 2100 after 28 days on 24 February 2100 at 14:51.
There is medium ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at very acute angle, so their combined tidal force is moderate.
Lunar disc appears visually 0.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1936" and ∠1948".
The Moon is 16 days old and navigating from the middle to the last part of the current synodic month. This is lunation 1237 of Meeus index or 2190 from Brown series.
The length of this lunation is 29 days, 15 hours and 59 minutes and it is 1 hour and 35 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 3 hours and 15 minutes longer than the mean synodic month length. It is 3 hours and 48 minutes 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 ∠81.3° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠119.1°.
10 days since point of apogee on 17 January 2100 at 10:48 in ♈ Aries the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next day until the Moon reaches the point of next perigee on 29 January 2100 at 05:53 in ♍ Virgo.
The Moon is 370 162 km (230 008 mi) away from Earth and getting closer over the next day until the point perigee when Earth-Moon distance is going to be 366 241 km (227 572 mi).
12 days after ascending node on 15 January 2100 at 03:56 in ♓ Pisces the Moon is positioned north of the ecliptic over the following day until the lunar crosses the ecliptic again from North to South in descending node on 29 January 2100 at 00:35 in ♍ Virgo.
4 days since the last northern standstill on 23 January 2100 at 08:16 in ♊ Gemini when the Moon has reached North declination of ∠28.437° the lunar orbit is extending southward over the next 8 days to face maximum declination of ∠-28.496° at the point of next southern standstill on 5 February 2100 at 04:00 in ♐ Sagittarius.
12 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 12 days on 9 February 2100 at 04:55 in ♒ Aquarius 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
