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

Waning Gibbous in Taurus

Waning Gibbous on . Illuminated surface of the Moon is 90% and getting smaller. Lunar cycle is 17 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 ♉ Taurus

Moon is passing about ∠22° of ♉ Taurus tropical zodiac sector.

2 days after Full Moon

Previous main lunar phase is the Full Moon before 2 days on 5 October 2017 at 18:40.

Hunter Moon before 2 days

Next Full Moon is the Beaver Moon of November 2017 after 26 days on 4 November 2017 at 05:23.

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 ∠1955"

Lunar disc appears visually 1.7% wider than solar disc. Moon and Sun apparent angular diameters are ∠1955" and ∠1921".

Lunation 219 / 1172

The Moon is 17 days old and navigating from the middle to the last part of the current synodic month. This is lunation 219 of Meeus index or 1172 from Brown series.

Synodic month length 29.57 days

The length of this lunation is 29 days, 13 hours and 42 minutes and it is 2 hours and 48 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 58 minutes longer than the mean synodic month length. It is 6 hours and 5 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠79°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠79° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠114.6°.

Moon before perigee

11 days since point of apogee on 27 September 2017 at 06:49 in ♐ Sagittarius the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next day until the Moon reaches the point of next perigee on 9 October 2017 at 05:51 in ♊ Gemini.

Distance to Moon 366 703 km

The Moon is 366 703 km (227 859 mi) away from Earth and getting closer over the next day until the point perigee when Earth-Moon distance is going to be 366 858 km (227 955 mi).

Moon after descending node

6 days after descending node on 2 October 2017 at 02:05 in ♒ Aquarius the Moon is positioned south of the ecliptic over the following 6 days until the lunar crosses the ecliptic again from South to North in ascending node on 14 October 2017 at 22:10 in ♌ Leo.

Moon before northern standstill

10 days since the last southern standstill on 28 September 2017 at 10:06 in ♑ Capricorn when the Moon has reached South declination of ∠-19.516° the lunar orbit is extending northward over the next 3 days to face maximum declination of ∠19.616° at the point of next northern standstill on 11 October 2017 at 18:21 in ♋ Cancer.

Draconic month

20 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 11 days

In 11 days on 19 October 2017 at 19:12 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