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

First Quarter in Aries

First Quarter on . Illuminated surface of the Moon is 55% and growing larger. Lunar cycle is 8 days young.

* The exact date and time of this First Quarter phase is on 20 December 2042 at 00:28 UTC.

Moonrise and moonset

Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♈ Aries

Moon is passing about ∠5° of ♈ Aries tropical zodiac sector.

Cold Moon after 6 days

Next Full Moon is the Cold Moon of December 2042 after 6 days on 26 December 2042 at 17:43.

Moderate tide

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.

Apparent angular diameter ∠1962"

Lunar disc appears visually 0.6% wider than solar disc. Moon and Sun apparent angular diameters are ∠1962" and ∠1950".

Lunation 531 / 1484

The Moon is 8 days young and navigating through the first part of the current synodic month. This is lunation 531 of Meeus index or 1484 from Brown series.

Synodic month length 29.68 days

The length of this lunation is 29 days, 16 hours and 24 minutes and it is 2 hours and 10 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°).

Lunation length longer than mean

The length of the current synodic month is 3 hours and 40 minutes longer than the mean synodic month length. It is 3 hours and 23 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠232°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠232° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠269.3°.

Moon before perigee

12 days since point of apogee on 8 December 2042 at 00:37 in ♏ Scorpio the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 3 days until the Moon reaches the point of next perigee on 24 December 2042 at 02:12 in ♉ Taurus.

Distance to Moon 365 268 km

The Moon is 365 268 km (226 967 mi) away from Earth and getting closer over the next 3 days until the point perigee when Earth-Moon distance is going to be 364 795 km (226 673 mi).

Moon before ascending node

13 days after descending node on 7 December 2042 at 05:37 in ♎ Libra the Moon is positioned south of the ecliptic over the following day until the lunar crosses the ecliptic again from South to North in ascending node on 21 December 2042 at 04:46 in ♈ Aries.

Moon before northern standstill

6 days since the last southern standstill on 13 December 2042 at 13:29 in ♐ Sagittarius when the Moon has reached South declination of ∠-28.294° the lunar orbit is extending northward over the next 6 days to face maximum declination of ∠28.289° at the point of next northern standstill on 26 December 2042 at 13:20 in ♊ Gemini.

Draconic month

26 days since the beginning of this draconic month in ♈ Aries the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 6 days

In 6 days on 26 December 2042 at 17:43 in ♊ Gemini 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.

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