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

Last Quarter in Aries

Last Quarter on . Illuminated surface of the Moon is 53% and getting smaller. Lunar cycle is 21 days old.

* The exact date and time of this Last Quarter phase is on 13 July 2001 at 18:45 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 ♈ Aries

Moon is passing about ∠18° of ♈ Aries tropical zodiac sector.

Sturgeon Moon after 21 days

Next Full Moon is the Sturgeon Moon of August 2001 after 21 days on 4 August 2001 at 05:56.

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 ∠1807"

Lunar disc appears visually 4.4% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1807" and ∠1888".

Lunation 18 / 971

The Moon is 21 days old and navigating through the last part of the current synodic month. This is lunation 18 of Meeus index or 971 from Brown series.

Synodic month length 29.32 days

The length of this lunation is 29 days, 7 hours and 47 minutes and it is 36 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 shorter than mean

The length of the current synodic month is 4 hours and 57 minutes shorter than the mean synodic month length. It is 1 hour and 12 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠324.1°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠324.1° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠342.5°.

Moon after apogee

4 days since point of apogee on 9 July 2001 at 11:24 in ♒ Aquarius the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 8 days until the Moon reaches the point of next perigee on 21 July 2001 at 20:44 in ♌ Leo.

Distance to Moon 396 628 km

The Moon is 396 628 km (246 453 mi) away from Earth and getting closer over the next 8 days until the point perigee when Earth-Moon distance is going to be 359 027 km (223 089 mi).

Moon before ascending node

8 days after descending node on 5 July 2001 at 00:48 in ♑ Capricorn the Moon is positioned south of the ecliptic over the following 5 days until the lunar crosses the ecliptic again from South to North in ascending node on 19 July 2001 at 08:24 in ♋ Cancer.

Moon before northern standstill

7 days since the last southern standstill on 5 July 2001 at 12:19 in ♑ Capricorn when the Moon has reached South declination of ∠-23.413° the lunar orbit is extending northward over the next 6 days to face maximum declination of ∠23.418° at the point of next northern standstill on 19 July 2001 at 17:53 in ♋ Cancer.

Draconic month

21 days since the beginning of this draconic month in ♊ Gemini the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 7 days

In 7 days on 20 July 2001 at 19:44 in ♋ Cancer 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