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

First Quarter in Cancer

First Quarter on . Illuminated surface of the Moon is 57% and growing larger. Lunar cycle is 8 days young.

* The exact date and time of this First Quarter phase is on 17 March 2005 at 19:19 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 ♋ Cancer

Moon is passing about ∠6° of ♋ Cancer tropical zodiac sector.

Worm Moon after 7 days

Next Full Moon is the Worm Moon of March 2005 after 7 days on 25 March 2005 at 20:58.

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 ∠1774"

Lunar disc appears visually 8.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1774" and ∠1927".

Lunation 64 / 1017

The Moon is 8 days young and navigating through the first part of the current synodic month. This is lunation 64 of Meeus index or 1017 from Brown series.

Synodic month length 29.47 days

The length of this lunation is 29 days, 11 hours and 22 minutes and it is 51 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 1 hour and 22 minutes shorter than the mean synodic month length. It is 4 hours and 47 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit details for

True anomaly ∠36.2°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠36.2° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠62.3°.

Moon before apogee

10 days since point of perigee on 8 March 2005 at 03:42 in ♒ Aquarius the lunar orbit is getting widen while the Moon is moving away from the Earth. It will keep this direction over the next day until the Moon reaches the point of next apogee on 19 March 2005 at 22:54 in ♋ Cancer.

Distance to Moon 404 112 km

The Moon is 404 112 km (251 104 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 404 848 km (251 561 mi).

Moon after ascending node

5 days after ascending node on 12 March 2005 at 17:37 in ♈ Aries 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 March 2005 at 05:15 in ♎ Libra.

Moon at northern standstill

At 08:25 the Moon is meeting its standstill point to reach North declination of ∠28.325°. Over the upcoming 13 days the lunar orbit is going to tilt southward to face maximum declination of ∠-28.372° at the point of next southern standstill in ♑ Capricorn on 1 April 2005 at 10:19.

Draconic month

5 days since the beginning of this draconic month in ♈ Aries the Moon is navigating from the beginning to the first part of the lunar cycle.

Syzygy in 7 days

In 7 days on 25 March 2005 at 20:58 in ♍ Virgo 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