Gibbous ♊ Gemini
Moon phase on 4 February 2017 Saturday is First Quarter, 8 days young Moon is in Taurus.Share this page: twitter facebook linkedin
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 54% and growing larger. The 8 days young Moon is in ♉ Taurus.
* The exact date and time of this First Quarter phase is on 4 February 2017 at 04:19 UTC.
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon is passing about ∠20° of ♉ Taurus tropical zodiac sector.
Lunar disc appears visually 1.3% wider than solar disc. Moon and Sun apparent angular diameters are ∠1972" and ∠1946".
Next Full Moon is the Snow Moon of February 2017 after 6 days on 11 February 2017 at 00:33.
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.
The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 211 of Meeus index or 1164 from Brown series.
Length of current 211 lunation is 29 days, 14 hours and 51 minutes. It is 2 hours and 52 minutes longer than next lunation 212 length.
Length of current synodic month is 2 hours and 7 minutes longer than the mean length of synodic month, but it is still 4 hours and 56 minutes shorter, compared to 21st century longest.
This lunation true anomaly is ∠259.5°. At the beginning of next synodic month true anomaly will be ∠295°. 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°).
13 days after point of apogee on 22 January 2017 at 00:14 in ♐ Sagittarius. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 2 days, until it get to the point of next perigee on 6 February 2017 at 13:59 in ♊ Gemini.
Moon is 363 520 km (225 881 mi) away from Earth on this date. Moon moves closer next 2 days until perigee, when Earth-Moon distance will reach 368 817 km (229 172 mi).
5 days after its descending node on 29 January 2017 at 22:21 in ♒ Aquarius, the Moon is following the southern part of its orbit for the next 7 days, until it will cross the ecliptic from South to North in ascending node on 11 February 2017 at 19:49 in ♌ Leo.
20 days after beginning of current draconic month in ♍ Virgo, the Moon is moving from the second to the final part of it.
10 days after previous South standstill on 25 January 2017 at 11:59 in ♑ Capricorn, when Moon has reached southern declination of ∠-18.900°. Next 3 days the lunar orbit moves northward to face North declination of ∠18.865° in the next northern standstill on 7 February 2017 at 18:34 in ♊ Gemini.
After 6 days on 11 February 2017 at 00:33 in ♌ Leo, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.