Quarter ♐ Sagittarius
Moon phase on 18 August 2018 Saturday is First Quarter, 7 days young Moon is in Scorpio.Share this page: twitter facebook linkedin
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 52% and growing larger. The 7 days young Moon is in ♏ Scorpio.
* The exact date and time of this First Quarter phase is on 18 August 2018 at 07:49 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Lunar disc appears visually 3.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1824" and ∠1896".
Next Full Moon is the Sturgeon Moon of August 2018 after 7 days on 26 August 2018 at 11:56.
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 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 230 of Meeus index or 1183 from Brown series.
Length of current 230 lunation is 29 days, 8 hours and 4 minutes. It is 1 hour and 41 minutes shorter than next lunation 231 length.
Length of current synodic month is 4 hours and 40 minutes shorter than the mean length of synodic month, but it is still 1 hour and 29 minutes longer, compared to 21st century shortest.
This New Moon true anomaly is ∠11.2°. At beginning of next synodic month true anomaly will be ∠28°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).
7 days after point of perigee on 10 August 2018 at 18:05 in ♌ Leo. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 4 days, until it get to the point of next apogee on 23 August 2018 at 11:23 in ♑ Capricorn.
Moon is 392 885 km (244 127 mi) away from Earth on this date. Moon moves farther next 4 days until apogee, when Earth-Moon distance will reach 405 744 km (252 118 mi).
7 days after its ascending node on 10 August 2018 at 13:40 in ♋ Cancer, the Moon is following the northern part of its orbit for the next 5 days, until it will cross the ecliptic from North to South in descending node on 24 August 2018 at 04:51 in ♒ Aquarius.
7 days after beginning of current draconic month in ♋ Cancer, the Moon is moving from the beginning to the first part of it.
9 days after previous North standstill on 8 August 2018 at 22:33 in ♋ Cancer, when Moon has reached northern declination of ∠20.757°. Next 3 days the lunar orbit moves southward to face South declination of ∠-20.773° in the next southern standstill on 22 August 2018 at 02:58 in ♑ Capricorn.
After 7 days on 26 August 2018 at 11:56 in ♓ Pisces, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.