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 85% and getting smaller. Lunar cycle is 18 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 is entering ♋ Cancer

Moon is passing first ∠1° of ♋ Cancer tropical zodiac sector.

3 days after Full Moon

Previous main lunar phase is the Full Moon before 3 days on 4 November 2017 at 05:23.

Beaver Moon before 3 days

Next Full Moon is the Cold Moon of December 2017 after 26 days on 3 December 2017 at 15:47.

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 ∠1973"

Lunar disc appears visually 1.9% wider than solar disc. Moon and Sun apparent angular diameters are ∠1973" and ∠1937".

Lunation 220 / 1173

The Moon is 18 days old and navigating from the middle to the last part of the current synodic month. This is lunation 220 of Meeus index or 1173 from Brown series.

Synodic month length 29.69 days

The length of this lunation is 29 days, 16 hours and 30 minutes and it is 2 hours and 18 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 3 hours and 46 minutes longer than the mean synodic month length. It is 3 hours and 17 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠114.6°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠114.6° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠147°.

Moon after perigee

1 day since point of perigee on 6 November 2017 at 00:09 in ♊ Gemini the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 14 days until the Moon reaches the point of next apogee on 21 November 2017 at 18:52 in ♐ Sagittarius.

Distance to Moon 363 298 km

The Moon is 363 298 km (225 743 mi) away from Earth and getting further over the next 14 days until the point apogee when Earth-Moon distance is going to be 406 132 km (252 359 mi).

Moon before ascending node

9 days after descending node on 29 October 2017 at 06:41 in ♒ Aquarius the Moon is positioned south of the ecliptic over the following 3 days until the lunar crosses the ecliptic again from South to North in ascending node on 10 November 2017 at 22:40 in ♌ Leo.

Moon before northern standstill

12 days since the last southern standstill on 25 October 2017 at 18:13 in ♑ Capricorn when the Moon has reached South declination of ∠-19.741° the lunar orbit is extending northward over the next day to face maximum declination of ∠19.848° at the point of next northern standstill on 8 November 2017 at 01:28 in ♋ Cancer.

Draconic month

23 days since the beginning of this draconic month in ♌ Leo the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 10 days

In 10 days on 18 November 2017 at 11:42 in ♏ Scorpio 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