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

Waning Gibbous in Scorpio

Waning Gibbous on . The illuminated surface of the moon is 77% and getting smaller. The lunar cycle is 19 days old.

Moonrise and moonset

The 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.

Moon phases on nearby dates

Slide horizontally to discover the moon phase on nearby dates.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon is entering ♏ Scorpio

Moon is passing first ∠1° of ♏ Scorpio tropical zodiac sector.

4 days after Full Moon

Previous main lunar phase is the Full Moon before 4 days on 18 February 2011 at 08:36.

Snow Moon before 4 days

Next Full Moon is the Worm Moon of March 2011 after 25 days on 19 March 2011 at 18:10.

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 ∠1956"

Lunar disc appears visually 0.8% wider than solar disc. Moon and Sun apparent angular diameters are ∠1956" and ∠1940".

Lunation 137 / 1090

The Moon is 19 days old and navigating from the middle to the last part of the current synodic month. This is lunation 137 of Meeus index or 1090 from Brown series.

Synodic month length 29.76 days

The length of this lunation is 29 days, 18 hours and 15 minutes and it is 29 minutes longer than the upcoming lunation's length. This is the year's longest synodic month of 2011. 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 5 hours and 31 minutes longer than the mean synodic month length. It is 1 hour and 32 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠139.2°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠139.2° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠167°.

Moon after perigee

3 days since point of perigee on 19 February 2011 at 07:27 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 11 days until the Moon reaches the point of next apogee on 6 March 2011 at 07:50 in ♈ Aries.

Distance to Moon 366 459 km

The Moon is 366 459 km (227 707 mi) away from Earth and getting further over the next 11 days until the point apogee when Earth-Moon distance is going to be 406 584 km (252 640 mi).

Moon before ascending node

8 days after descending node on 14 February 2011 at 08:14 in ♋ Cancer the Moon is positioned south of the ecliptic over the following 4 days until the lunar crosses the ecliptic again from South to North in ascending node on 26 February 2011 at 20:19 in ♐ Sagittarius.

Moon before southern standstill

9 days since the last northern standstill on 13 February 2011 at 09:00 in ♊ Gemini when the Moon has reached North declination of ∠24.080° the lunar orbit is extending southward over the next 3 days to face maximum declination of ∠-23.985° at the point of next southern standstill on 25 February 2011 at 22:13 in ♐ Sagittarius.

Draconic month

22 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 10 days

In 10 days on 4 March 2011 at 20:46 in ♓ Pisces 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