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

Waning Gibbous in Cancer

Waning Gibbous on . Illuminated surface of the Moon is 66% and getting smaller. Lunar cycle is 20 days old.

Moonrise and moonset

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.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♋ Cancer

Moon is passing about ∠5° of ♋ Cancer tropical zodiac sector.

6 days after Full Moon

Previous main lunar phase is the Full Moon before 6 days on 12 October 2011 at 02:06.

Hunter Moon before 6 days

Next Full Moon is the Beaver Moon of November 2011 after 23 days on 10 November 2011 at 20:16.

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 ∠1839"

Lunar disc appears visually 4.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1839" and ∠1926".

Lunation 145 / 1098

The Moon is 20 days old and navigating from the middle to the last part of the current synodic month. This is lunation 145 of Meeus index or 1098 from Brown series.

Synodic month length 29.37 days

The length of this lunation is 29 days, 8 hours and 47 minutes and it is 1 hour and 27 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 shorter than mean

The length of the current synodic month is 3 hours and 57 minutes shorter than the mean synodic month length. It is 2 hours and 12 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠350.1°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠350.1° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠5.3°.

Moon after apogee

6 days since point of apogee on 12 October 2011 at 11:43 in ♈ Aries 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 26 October 2011 at 12:26 in ♎ Libra.

Distance to Moon 389 822 km

The Moon is 389 822 km (242 224 mi) away from Earth and getting closer over the next 8 days until the point perigee when Earth-Moon distance is going to be 357 051 km (221 861 mi).

Moon after descending node

1 day after descending node on 16 October 2011 at 21:01 in ♊ Gemini 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 29 October 2011 at 14:59 in ♐ Sagittarius.

Moon after northern standstill

1 day since the last northern standstill on 17 October 2011 at 02:06 in ♊ Gemini when the Moon has reached North declination of ∠22.665° the lunar orbit is extending southward over the next 11 days to face maximum declination of ∠-22.609° at the point of next southern standstill on 29 October 2011 at 20:17 in ♐ Sagittarius.

Draconic month

16 days since the beginning of this draconic month in ♐ Sagittarius the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 8 days

In 8 days on 26 October 2011 at 19:56 in ♎ Libra 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