Waning Gibbous on

Moon phase on 8 December 2017 Friday is Waning Gibbous, 20 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 70% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 70% and getting smaller. The 20 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

4 days after Full Moon

Previous main lunar phase is the Full Moon before 4 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 ∠24° of ♌ Leo tropical zodiac sector.

Apparent angular diameter ∠1937"

Lunar disc appears visually 0.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1937" and ∠1948".

Cold Moon before 4 days

Next Full Moon is the Wolf Moon of January 2018 after 24 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 20 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

Length of current 221 lunation is 29 days, 18 hours and 48 minutes. It is 59 minutes shorter than next lunation 222 length.

Lunation length longer than mean

Length of current synodic month is 6 hours and 4 minutes longer than the mean length of synodic month, but it is still 59 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠147°

This New Moon true anomaly is ∠147°. At beginning of next synodic month true anomaly will be ∠173.3°. 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°).

Moon after perigee

4 days after point of perigee on 4 December 2017 at 08:42 in ♊ Gemini. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 10 days, until it get to the point of next apogee on 19 December 2017 at 01:27 in ♑ Capricorn.

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Distance to Moon 370 091 km

Moon is 370 091 km (229 964 mi) away from Earth on this date. Moon moves farther next 10 days until apogee, when Earth-Moon distance will reach 406 605 km (252 653 mi).

Moon in ascending node

Moon is in ascending node in ♌ Leo at 00:39 on this date, it crosses the ecliptic from South to North. Moon will follow the northern part of its orbit for the next 13 days to meet descending node on 22 December 2017 at 10:04 in ♒ Aquarius.

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New draconic month

At 00:39 on this date the Moon is completing its previous draconic month and is entering the new one.


Moon after northern standstill

3 days after previous North standstill on 5 December 2017 at 11:43 in ♋ Cancer, when Moon has reached northern declination of ∠20.015°. Next 10 days the lunar orbit moves southward to face South declination of ∠-20.062° in the next southern standstill on 19 December 2017 at 09:31 in ♑ Capricorn.

Previous standstillNext standstill

Syzygy in 9 days

After 9 days on 18 December 2017 at 06:31 in ♐ Sagittarius, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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