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

Waxing Gibbous in Libra

Waxing Gibbous on . Illuminated surface of the Moon is 90% and growing larger. Lunar cycle is 12 days young.

Moonrise and moonset

Moon rises in the afternoon and sets after midnight to early morning. It is visible to the southeast in early evening and it is up for most of the night.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♎ Libra

Moon is passing about ∠25° of ♎ Libra tropical zodiac sector.

4 days after First Quarter

Previous main lunar phase is the First Quarter before 4 days on 18 May 2013 at 04:35.

Flower Moon after 2 days

Next Full Moon is the Flower Moon of May 2013 after 2 days on 25 May 2013 at 04:25.

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 ∠1917"

Lunar disc appears visually 1.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1917" and ∠1895".

Lunation 165 / 1118

The Moon is 12 days young and navigating from the first to the middle part of the current synodic month. This is lunation 165 of Meeus index or 1118 from Brown series.

Synodic month length 29.64 days

The length of this lunation is 29 days, 15 hours and 28 minutes and it is 10 minutes longer than the upcoming lunation's length. This is the year's longest synodic month of 2013. 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 2 hours and 44 minutes longer than the mean synodic month length. It is 4 hours and 19 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠143.3°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠143.3° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠168.8°.

Moon before perigee

8 days since point of apogee on 13 May 2013 at 13:31 in ♊ Gemini the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 3 days until the Moon reaches the point of next perigee on 26 May 2013 at 01:45 in ♐ Sagittarius.

Distance to Moon 373 925 km

The Moon is 373 925 km (232 346 mi) away from Earth and getting closer over the next 3 days until the point perigee when Earth-Moon distance is going to be 358 375 km (222 684 mi).

Moon before ascending node

12 days after descending node on 9 May 2013 at 19:12 in ♉ Taurus 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 24 May 2013 at 00:40 in ♏ Scorpio.

Moon before southern standstill

9 days since the last northern standstill on 12 May 2013 at 12:30 in ♊ Gemini when the Moon has reached North declination of ∠20.170° the lunar orbit is extending southward over the next 3 days to face maximum declination of ∠-20.182° at the point of next southern standstill on 26 May 2013 at 04:47 in ♐ Sagittarius.

Draconic month

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

Syzygy in 2 days

In 2 days on 25 May 2013 at 04:25 in ♐ Sagittarius the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon 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