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

Waning Gibbous in Pisces

Waning Gibbous on . Illuminated surface of the Moon is 83% 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 in ♓ Pisces

Moon is passing about ∠16° of ♓ Pisces tropical zodiac sector.

4 days after Full Moon

Previous main lunar phase is the Full Moon before 4 days on 15 July 2011 at 06:40.

Buck Moon before 4 days

Next Full Moon is the Sturgeon Moon of August 2011 after 25 days on 13 August 2011 at 18:58.

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 ∠1779"

Lunar disc appears visually 5.9% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1779" and ∠1888".

Lunation 142 / 1095

The Moon is 18 days old and navigating from the middle to the last part of the current synodic month. This is lunation 142 of Meeus index or 1095 from Brown series.

Synodic month length 29.41 days

The length of this lunation is 29 days, 9 hours and 46 minutes and it is 1 hour and 22 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 2 hours and 58 minutes shorter than the mean synodic month length. It is 3 hours and 11 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠283.1°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠283.1° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠312.1°.

Moon before apogee

11 days since point of perigee on 7 July 2011 at 14:04 in ♍ Virgo the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 2 days until the Moon reaches the point of next apogee on 21 July 2011 at 22:46 in ♈ Aries.

Distance to Moon 402 830 km

The Moon is 402 830 km (250 307 mi) away from Earth and getting further over the next 2 days until the point apogee when Earth-Moon distance is going to be 404 358 km (251 256 mi).

Moon after ascending node

6 days after ascending node on 13 July 2011 at 02:27 in ♐ Sagittarius the Moon is positioned north of the ecliptic over the following 8 days until the lunar crosses the ecliptic again from North to South in descending node on 27 July 2011 at 12:03 in ♊ Gemini.

Moon after southern standstill

6 days since the last southern standstill on 12 July 2011 at 16:51 in ♐ Sagittarius when the Moon has reached South declination of ∠-23.383° the lunar orbit is extending northward over the next 7 days to face maximum declination of ∠23.333° at the point of next northern standstill on 27 July 2011 at 03:02 in ♊ Gemini.

Draconic month

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

Syzygy in 11 days

In 11 days on 30 July 2011 at 18:40 in ♌ Leo 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