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 99% and getting smaller. Lunar cycle is 15 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 ∠20° of ♋ Cancer tropical zodiac sector.

1 day after Full Moon

Previous main lunar phase is the Full Moon before 1 day on 28 December 2012 at 10:21.

Cold Moon before 1 day

Next Full Moon is the Wolf Moon of January 2013 after 28 days on 27 January 2013 at 04:38.

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 ∠1789"

Lunar disc appears visually 8.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1789" and ∠1951".

Lunation 160 / 1113

The Moon is 15 days old and navigating from the middle to the last part of the current synodic month. This is lunation 160 of Meeus index or 1113 from Brown series.

Synodic month length 29.46 days

The length of this lunation is 29 days, 11 hours and 2 minutes and it is 34 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 1 hour and 42 minutes shorter than the mean synodic month length. It is 4 hours and 27 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠6.8°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠6.8° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠23.3°.

Moon after apogee

3 days since point of apogee on 25 December 2012 at 21:19 in ♊ Gemini the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 11 days until the Moon reaches the point of next perigee on 10 January 2013 at 10:26 in ♑ Capricorn.

Distance to Moon 400 692 km

The Moon is 400 692 km (248 978 mi) away from Earth and getting closer over the next 11 days until the point perigee when Earth-Moon distance is going to be 360 048 km (223 723 mi).

Moon after descending node

4 days after descending node on 24 December 2012 at 22:27 in ♉ Taurus the Moon is positioned south of the ecliptic over the following 9 days until the lunar crosses the ecliptic again from South to North in ascending node on 7 January 2013 at 23:50 in ♏ Scorpio.

Moon after northern standstill

2 days since the last northern standstill on 26 December 2012 at 21:24 in ♊ Gemini when the Moon has reached North declination of ∠20.927° the lunar orbit is extending southward over the next 11 days to face maximum declination of ∠-20.879° at the point of next southern standstill on 9 January 2013 at 15:22 in ♐ Sagittarius.

Draconic month

17 days since the beginning of this draconic month in ♏ Scorpio the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 13 days

In 13 days on 11 January 2013 at 19:44 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