Current Date: 31 Jul 2010 17:26:52 UTC
JD: 2455409.226988
Lunation number: 1083
Has begun: 11 Jul 2010 07:40:28
Will end: 09 Aug 2010 15:08:08
Duration: 29d 07h 27m 40s
Moon Age: 20d 09h 46m 24s
Moon Phase: 2d 11h 31m 46s before Last Quarter
New Moon: 11 Jul 2010 07:40:28
First Quarter: 18 Jul 2010 10:10:35
Full Moon: 26 Jul 2010 01:36:33
Last Quarter: 03 Aug 2010 04:58:38
Closest to planets (bolded indicates occultation)
Mercury: 12 Jul 2010 22:09:34
Venus: 14 Jul 2010 20:41:07
Mars: 16 Jul 2010 00:11:45
Saturn: 16 Jul 2010 13:30:59
Neptune: 28 Jul 2010 03:13:32
Uranus: 30 Jul 2010 21:10:09
Jupiter: 31 Jul 2010 03:09:40
The lunation number represents the number of times the Moon has cycled the Earth since January 1923 (based on a series described by Ernest W. Brown in Planetary Theory, 1933). One cycle, or lunation, starts at new moon and lasts until the next new moon. New Moon is defined at the instant at which centers of Sun and Moon share the same ecliptical longitude for a hypothetic geocentric observer.
The average duration of lunations is 29d 12h 44m 03s. However, because orbits of Earth and Moon are not circular length of any specific lunation may differ up by several hours. The shortest lunation for years between 1601 and 2400 is 29d 06h 31m 28s while longest is 29d 19h 58m 58s.
Lunation 1 begun with the first New Moon in year 1923 (around 02:41 UTC on January 17).
All times are in UTC. Closest to planets is the instant of ecliptic conjunction of Moon with planets.
