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

First Quarter in Sagittarius

First Quarter on . Illuminated surface of the Moon is 50% and growing larger. Lunar cycle is 7 days young.

* The exact date and time of this First Quarter phase is on 22 September 2042 at 13:20 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 ♐ Sagittarius

Moon is leaving the last ∠1° of ♐ Sagittarius tropical zodiac sector and will enter ♑ Capricorn later.

Harvest Moon after 6 days

Next Full Moon is the Harvest Moon of September 2042 after 6 days on 29 September 2042 at 10:34.

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 ∠1831"

Lunar disc appears visually 4.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1831" and ∠1912".

Lunation 528 / 1481

The Moon is 7 days young and navigating through the first part of the current synodic month. This is lunation 528 of Meeus index or 1481 from Brown series.

Synodic month length 29.72 days

The length of this lunation is 29 days, 17 hours and 13 minutes and it is 1 hour 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 4 hours and 29 minutes longer than the mean synodic month length. It is 2 hours and 34 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠152.7°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠152.7° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠177.1°.

Moon after apogee

5 days since point of apogee on 17 September 2042 at 04:21 in ♎ Libra the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 7 days until the Moon reaches the point of next perigee on 29 September 2042 at 23:50 in ♈ Aries.

Distance to Moon 391 445 km

The Moon is 391 445 km (243 233 mi) away from Earth and getting closer over the next 7 days until the point perigee when Earth-Moon distance is going to be 357 428 km (222 095 mi).

Moon after descending node

5 days after descending node on 16 September 2042 at 13:51 in ♎ Libra the Moon is positioned south of the ecliptic over the following 7 days until the lunar crosses the ecliptic again from South to North in ascending node on 30 September 2042 at 04:41 in ♈ Aries.

Moon at southern standstill

At 20:02 the Moon is meeting its standstill point to reach South declination of ∠-28.465°. Over the upcoming 12 days the lunar orbit is going to tilt northward to face maximum declination of ∠28.491° at the point of next northern standstill in ♋ Cancer on 5 October 2042 at 09:09.

Draconic month

19 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 29 September 2042 at 10:34 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.

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