Quarter* ♉ Taurus
Moon phase on 9 August 2031 Saturday is Last Quarter, 21 days old Moon is in Taurus.Share this page: twitter facebook linkedin
Last Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 55% and getting smaller. The 21 days old Moon is in ♉ Taurus.
* The exact date and time of this Last Quarter phase is on 10 August 2031 at 00:24 UTC.
Moon rises at midnight and sets at noon. It is visible to the south in the morning.
Moon is passing about ∠11° of ♉ Taurus tropical zodiac sector.
Lunar disc appears visually 3.2% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1833" and ∠1893".
Next Full Moon is the Harvest Moon of September 2031 after 22 days on 1 September 2031 at 09:20.
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.
The Moon is 21 days old. Earth's natural satellite is moving through the last part of current synodic month. This is lunation 390 of Meeus index or 1343 from Brown series.
Length of current 390 lunation is 29 days, 14 hours and 52 minutes. It is 37 minutes longer than next lunation 391 length.
Length of current synodic month is 2 hours and 8 minutes longer than the mean length of synodic month, but it is still 4 hours and 55 minutes shorter, compared to 21st century longest.
This lunation true anomaly is ∠188.7°. At the beginning of next synodic month true anomaly will be ∠213.5°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).
7 days after point of perigee on 2 August 2031 at 06:47 in ♑ Capricorn. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 5 days, until it get to the point of next apogee on 14 August 2031 at 21:37 in ♋ Cancer.
Moon is 391 118 km (243 029 mi) away from Earth on this date. Moon moves farther next 5 days until apogee, when Earth-Moon distance will reach 405 946 km (252 243 mi).
11 days after its ascending node on 28 July 2031 at 23:54 in ♏ Scorpio, the Moon is following the northern part of its orbit for the next day, until it will cross the ecliptic from North to South in descending node on 10 August 2031 at 14:10 in ♉ Taurus.
11 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the beginning to the first part of it.
9 days after previous South standstill on 30 July 2031 at 15:45 in ♐ Sagittarius, when Moon has reached southern declination of ∠-20.951°. Next 3 days the lunar orbit moves northward to face North declination of ∠20.868° in the next northern standstill on 12 August 2031 at 15:58 in ♊ Gemini.
After 8 days on 18 August 2031 at 04:32 in ♌ Leo, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.