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

Waning Gibbous in Aries

Waning Gibbous on . Illuminated surface of the Moon is 93% 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 ♈ Aries

Moon is passing about ∠10° of ♈ Aries tropical zodiac sector.

2 days after Full Moon

Previous main lunar phase is the Full Moon before 2 days on 30 August 2004 at 02:22.

Sturgeon Moon before 2 days

Next Full Moon is the Harvest Moon of September 2004 after 27 days on 28 September 2004 at 13:09.

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 ∠1858"

Lunar disc appears visually 2.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1858" and ∠1902".

Lunation 57 / 1010

The Moon is 17 days old and navigating from the middle to the last part of the current synodic month. This is lunation 57 of Meeus index or 1010 from Brown series.

Synodic month length 29.55 days

The length of this lunation is 29 days, 13 hours and 5 minutes and it is 46 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 longer than mean

The length of the current synodic month is 21 minutes longer than the mean synodic month length. It is 6 hours and 42 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠234°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠234° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠269.4°.

Moon after perigee

5 days since point of perigee on 27 August 2004 at 05:37 in ♑ Capricorn the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 6 days until the Moon reaches the point of next apogee on 8 September 2004 at 02:42 in ♋ Cancer.

Distance to Moon 385 710 km

The Moon is 385 710 km (239 669 mi) away from Earth and getting further over the next 6 days until the point apogee when Earth-Moon distance is going to be 404 464 km (251 322 mi).

Moon before ascending node

10 days after descending node on 21 August 2004 at 12:11 in ♏ Scorpio the Moon is positioned south of the ecliptic over the following day until the lunar crosses the ecliptic again from South to North in ascending node on 3 September 2004 at 06:34 in ♉ Taurus.

Moon after southern standstill

6 days since the last southern standstill on 25 August 2004 at 20:48 in ♐ Sagittarius when the Moon has reached South declination of ∠-27.776° the lunar orbit is extending northward over the next 6 days to face maximum declination of ∠27.870° at the point of next northern standstill on 8 September 2004 at 09:40 in ♋ Cancer.

Draconic month

25 days since the beginning of this draconic month in ♉ Taurus the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 13 days

In 13 days on 14 September 2004 at 14:29 in ♍ Virgo 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