Waning Gibbous on

Moon phase on 7 December 2017 Thursday is Waning Gibbous, 19 days old Moon is in Leo.

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Moon phase for

Lunar calendar 2017 | December 2017

Waning Gibbous phase
Waning Gibbous phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Waning Gibbous 80% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 80% and getting smaller. The 19 days old Moon is in ♌ Leo.

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Moon phases for next 7 days

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Moon phase and lunation details

3 days after Full Moon

Previous main lunar phase is the Full Moon before 3 days on 3 December 2017 at 15:47.

Moonrise and moonset

Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.

Moon in ♌ Leo

Moon is passing about ∠9° of ♌ Leo tropical zodiac sector.

Apparent angular diameter ∠1954"

Lunar disc appears visually 0.3% wider than solar disc. Moon and Sun apparent angular diameters are ∠1954" and ∠1948".

Cold Moon before 3 days

Next Full Moon is the Wolf Moon of January 2018 after 25 days on 2 January 2018 at 02:24.

Upcoming main Moon phases

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 221 / 1174

The Moon is 19 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 221 of Meeus index or 1174 from Brown series.

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Synodic month length 29.78 days

The length of the lunation is 29 days, 18 hours and 48 minutes. It is 59 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 6 hours and 4 minutes longer than the mean synodic month length. It is 59 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit position on

True anomaly ∠147°

At the beginning of the lunation cycle the true anomaly is ∠147°. At the beginning of next synodic month the true anomaly is going to be ∠173.3°.

Moon after perigee

3 days after point of perigee on 4 December 2017 at 08:42 in ♊ Gemini. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 11 days, until the Moon reaches the point of next apogee on 19 December 2017 at 01:27 in ♑ Capricorn.

Previous perigeeNext apogee

Distance to Moon 366 828 km

The Moon is 366 828 km (227 936 mi) away from Earth and getting further over the next 11 days until the point apogee when Earth-Moon distance is going to be 406 605 km (252 653 mi).

Moon before ascending node

12 days after descending node on 25 November 2017 at 08:22 in ♒ Aquarius. The Moon is located south of the ecliptic over the following day, until the lunar orbit crosses from South to North in ascending node on 8 December 2017 at 00:39 in ♌ Leo.

Previous nodeNext node

Draconic month

26 days since the beginning of current draconic month in ♌ Leo, the Moon is navigating from the second to the final part of the cycle.

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Moon after northern standstill

2 days since the previous standstill on 5 December 2017 at 11:43 in ♋ Cancer when the Moon has reached North declination of ∠20.015°, the lunar orbit is extending southward over the next 11 days to face maximum declination of ∠-20.062° at the point of next southern standstill on 19 December 2017 at 09:31 in ♑ Capricorn.

Previous standstillNext standstill

Syzygy in 10 days

In 10 days on 18 December 2017 at 06:31 in ♐ Sagittarius the Moon is going to be in a New Moon geocentric conjunction with the Sun and thus forming the next Sun-Moon-Earth syzygy alignment.

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