First
Quarter ♈ Aries
Moon phase for
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.
First Quarter 49% illuminated
First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 49% and growing larger. The 7 days young Moon is in ♓ Pisces.
* The exact date and time of this First Quarter phase is on 19 December 2099 at 14:22 UTC.
Moon phases for next 7 days
Sunday Sun
Monday Mon
Tuesday Tue
Wednesday Wed
Thursday Thu
Friday Fri
Saturday Sat
Moon phase and lunation details
Moonrise and moonset
Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.
Moon in ♓ Pisces
Moon is leaving the last ∠3° of ♓ Pisces tropical zodiac sector and will enter ♈ Aries later.
Apparent angular diameter ∠1771"
Lunar disc appears visually 9.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1771" and ∠1950".
Cold Moon after 8 days
Next Full Moon is the Cold Moon of December 2099 after 8 days on 27 December 2099 at 12:58.
Upcoming main Moon phases
- Full Moon in Cancer ♋ on 27 December 2099 at 12:58
- Last Quarter in Libra ♎ on 3 January 2100 at 13:03
- New Moon in Capricorn ♑ on 10 January 2100 at 12:55
- First Quarter in Aries ♈ on 18 January 2100 at 12:34
Neap tide
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.
Lunation 1236 / 2189
The Moon is 7 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 1236 of Meeus index or 2189 from Brown series.
Synodic month length 29.57 days
The length of the lunation is 29 days, 13 hours and 47 minutes. It is 2 hours and 12 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).
Lunation length longer than mean
The length of the current synodic month is 1 hour and 3 minutes longer than the mean synodic month length. It is 6 hours shorter compared to 21st century's longest synodic month length.
Lunar orbit position on
True anomaly ∠49.8°
At the beginning of the lunation cycle the true anomaly is ∠49.8°. At the beginning of next synodic month the true anomaly is going to be ∠81.3°.
Moon before perigee
10 days after point of perigee on 8 December 2099 at 17:50 in ♎ Libra. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next day, until the Moon reaches the point of next apogee on 20 December 2099 at 13:16 in ♈ Aries.
Distance to Moon 404 808 km
The Moon is 404 808 km (251 536 mi) away from Earth and getting further over the next day until the point apogee when Earth-Moon distance is going to be 404 339 km (251 245 mi).
Moon in ascending node
Moon is in ascending node in ♓ Pisces at 01:02 crossing the ecliptic from South to North to meet descending node 13 days later on 1 January 2100 at 21:13 in ♍ Virgo.
New draconic month
At 01:02 the Moon completes the previous draconic month and enters the new one.
Moon after southern standstill
6 days since the previous standstill on 12 December 2099 at 13:59 in ♐ Sagittarius when the Moon has reached South declination of ∠-28.351°, the lunar orbit is extending northward over the next 7 days to face maximum declination of ∠28.345° at the point of next northern standstill on 26 December 2099 at 23:34 in ♊ Gemini.
Syzygy in 8 days
In 8 days on 27 December 2099 at 12:58 in ♋ Cancer the Moon is going to be in a Full Moon geocentric opposition with the Sun and thus forming the next Sun-Earth-Moon syzygy alignment.
