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

First Quarter in Scorpio

First Quarter on . Illuminated surface of the Moon is 56% and growing larger. Lunar cycle is 8 days young.

* The exact date and time of this First Quarter phase is on 28 July 2009 at 22:00 UTC.

Moonrise and moonset

Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♏ Scorpio

Moon is passing about ∠13° of ♏ Scorpio tropical zodiac sector.

Sturgeon Moon after 7 days

Next Full Moon is the Sturgeon Moon of August 2009 after 7 days on 6 August 2009 at 00:55.

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 ∠1834"

Lunar disc appears visually 3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1834" and ∠1890".

Lunation 118 / 1071

The Moon is 8 days young and navigating through the first part of the current synodic month. This is lunation 118 of Meeus index or 1071 from Brown series.

Synodic month length 29.31 days

The length of this lunation is 29 days, 7 hours and 27 minutes and it is 1 hour and 16 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 shorter than mean

The length of the current synodic month is 5 hours and 17 minutes shorter than the mean synodic month length. It is 52 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠4.5°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠4.5° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠20.3°.

Moon before apogee

7 days since point of perigee on 21 July 2009 at 20:16 in ♋ Cancer the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next 5 days until the Moon reaches the point of next apogee on 4 August 2009 at 00:42 in ♑ Capricorn.

Distance to Moon 390 859 km

The Moon is 390 859 km (242 869 mi) away from Earth and getting further over the next 5 days until the point apogee when Earth-Moon distance is going to be 406 027 km (252 293 mi).

Moon before ascending node

7 days after descending node on 22 July 2009 at 03:47 in ♌ Leo 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 4 August 2009 at 21:42 in ♑ Capricorn.

Moon before southern standstill

9 days since the last northern standstill on 19 July 2009 at 13:01 in ♊ Gemini when the Moon has reached North declination of ∠26.477° the lunar orbit is extending southward over the next 3 days to face maximum declination of ∠-26.478° at the point of next southern standstill on 1 August 2009 at 13:28 in ♐ Sagittarius.

Draconic month

20 days since the beginning of this draconic month in ♑ Capricorn the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 7 days

In 7 days on 6 August 2009 at 00:55 in ♒ Aquarius 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