Last Quarter Moon
Last Quarter MoonImage credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.(large image)

Last Quarter in Libra

Last Quarter on . Illuminated surface of the Moon is 51% and getting smaller. Lunar cycle is 22 days old.

* The exact date and time of this Last Quarter phase is on 3 January 2100 at 13:03 UTC.

Moonrise and moonset

Moon rises at midnight and sets at noon. It is visible to the south in the morning.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♎ Libra

Moon is passing about ∠13° of ♎ Libra tropical zodiac sector.

Wolf Moon after 22 days

Next Full Moon is the Wolf Moon of January 2100 after 22 days on 26 January 2100 at 02:49.

Neap tide

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.

Apparent angular diameter ∠1973"

Lunar disc appears visually 1.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1973" and ∠1951".

Lunation 1236 / 2189

The Moon is 22 days old and navigating through the last part of the current synodic month. This is lunation 1236 of Meeus index or 2189 from Brown series.

Synodic month length 29.57 days

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°).

Lunation length longer than mean

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.

Lunar orbit details for

True anomaly ∠49.8°

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°.

Moon at perigee

Moon is at perigee at 08:57 about 13 days since last apogee on 20 December 2099 at 13:16 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 17 January 2100 at 10:48 in ♈ Aries.

Distance to Moon 370 356 km

This perigee Moon is 370 356 km (230 129 mi) away from Earth. This is the year's farthest perigee of 2100. It is 7 848 km closer than the mean perigee distance, but it is still 0 km further than the closest perigee of 21st century.

Moon after descending node

1 day after descending node on 1 January 2100 at 21:13 in ♍ Virgo the Moon is positioned south of the ecliptic over the following 11 days until the lunar crosses the ecliptic again from South to North in ascending node on 15 January 2100 at 03:56 in ♓ Pisces.

Moon before southern standstill

7 days since the last northern standstill on 26 December 2099 at 23:34 in ♊ Gemini when the Moon has reached North declination of ∠28.345° the lunar orbit is extending southward over the next 5 days to face maximum declination of ∠-28.379° at the point of next southern standstill on 8 January 2100 at 21:59 in ♐ Sagittarius.

Draconic month

15 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.

Syzygy in 7 days

In 7 days on 10 January 2100 at 12:55 in ♑ Capricorn 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.

Lunar calendar

Sources and credits

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