Full
Moon ♈ Aries
Moon phase for
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.
Full Moon 100% illuminated
Full Moon is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 100%. The 14 days old Moon is in ♓ Pisces.
* The exact date and time of this Full Moon phase is on 20 September 2021 at 23:55 UTC.
Moon phases for next 7 days
Tuesday Tue
Wednesday Wed
Thursday Thu
Friday Fri
Saturday Sat
Sunday Sun
Monday Mon
Moon phase and lunation details
Moonrise and moonset
Moon rises at sunset and sets at sunrise. It is visible all night and it is high in the sky around midnight.
Moon in ♓ Pisces
Moon is passing about ∠22° of ♓ Pisces tropical zodiac sector.
Apparent angular diameter ∠1843"
Lunar disc appears visually 3.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1843" and ∠1911".
It is Harvest Moon
The Full Moon this days is the Harvest of September 2021.
Upcoming main Moon phases
- Last Quarter in Cancer ♋ on 29 September 2021 at 01:57
- New Moon in Libra ♎ on 6 October 2021 at 11:05
- First Quarter in Capricorn ♑ on 13 October 2021 at 03:25
- Full Moon in Aries ♈ on 20 October 2021 at 14:57
Spring tide
There is high Full Moon ocean tide on this date. Combined Sun and Moon gravitational tidal force working on Earth is strong, because of the Sun-Earth-Moon syzygy alignment.
Lunation 268 / 1221
The Moon is 14 days old. Earth's natural satellite is moving through the middle part of current synodic month. This is lunation 268 of Meeus index or 1221 from Brown series.
Synodic month length 29.43 days
The length of the lunation is 29 days, 10 hours and 14 minutes. It is 5 minutes longer than the next lunation's length. The lengths of the following synodic months are going to decreasing with the true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).
Lunation length shorter than mean
The length of the current synodic month is 2 hours and 30 minutes shorter than the mean synodic month length. It is 3 hours and 39 minutes longer compared to 21st century's shortest synodic month length.
Lunar orbit position on
True anomaly ∠297.8°
At the beginning of the lunation cycle the true anomaly is ∠297.8°. At the beginning of next synodic month the true anomaly is going to be ∠323.3°.
Moon before perigee
9 days after point of perigee on 11 September 2021 at 10:05 in ♏ Scorpio. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 6 days, until the Moon reaches the point of next apogee on 26 September 2021 at 21:44 in ♊ Gemini.
Distance to Moon 388 845 km
The Moon is 388 845 km (241 617 mi) away from Earth and getting further over the next 6 days until the point apogee when Earth-Moon distance is going to be 404 641 km (251 432 mi).
Moon before ascending node
7 days after descending node on 12 September 2021 at 16:35 in ♏ Scorpio. The Moon is located south of the ecliptic over the following 5 days, until the lunar orbit crosses from South to North in ascending node on 26 September 2021 at 07:33 in ♊ Gemini.
Draconic month
21 days since the beginning of current draconic month in ♊ Gemini, the Moon is navigating from the second to the final part of the cycle.
Moon after southern standstill
5 days since the previous standstill on 15 September 2021 at 03:48 in ♑ Capricorn when the Moon has reached South declination of ∠-25.980°, the lunar orbit is extending northward over the next 8 days to face maximum declination of ∠26.109° at the point of next northern standstill on 29 September 2021 at 08:26 in ♋ Cancer.
Sun-Earth-Moon syzygy
The Moon is in a Full Moon geocentric opposition with the Sun and thus forming Sun-Earth-Moon syzygy alignment.
