Waxing Gibbous on

Moon phase on 20 September 2018 Thursday is Waxing Gibbous, 10 days young Moon is in Aquarius.

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Moon phase for

Lunar calendar 2018 | September 2018

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

Waxing Gibbous 81% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 81% and growing larger. The 10 days young Moon is in ♒ Aquarius.

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Moon phases for next 7 days

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Moon phase and lunation details

3 days after First Quarter

Previous main lunar phase is the First Quarter before 3 days on 16 September 2018 at 23:15.

Moonrise and moonset

Moon rises in the afternoon and sets after midnight to early morning. It is visible to the southeast in early evening and it is up for most of the night.

Moon in ♒ Aquarius

Moon is passing about ∠6° of ♒ Aquarius tropical zodiac sector.

Apparent angular diameter ∠1768"

Lunar disc appears visually 7.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1911".

Harvest Moon after 4 days

Next Full Moon is the Harvest Moon of September 2018 after 4 days on 25 September 2018 at 02:53.

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 231 / 1184

The Moon is 10 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 231 of Meeus index or 1184 from Brown series.

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Synodic month length 29.41 days

The length of the lunation is 29 days, 9 hours and 45 minutes. It is 2 hours and 30 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 shorter than mean

The length of the current synodic month is 2 hours and 59 minutes shorter than the mean synodic month length. It is 3 hours and 10 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠28°

At the beginning of the lunation cycle the true anomaly is ∠28°. At the beginning of next synodic month the true anomaly is going to be ∠49.6°.

Moon at apogee

Moon is at apogee at 00:54. It is 11 days after previous perigee on 8 September 2018 at 01:21 in ♌ Leo. Lunar orbit is going to narrow while the Moon is moving towards the Earth over the next 15 days, until point of next perigee on 5 October 2018 at 22:29 in ♌ Leo.

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Distance to Moon 404 875 km

This apogee Moon is 404 875 km (251 578 mi) away from Earth. It is 533 km further than the mean apogee distance, but it is still 1 834 km closer than the farthest apogee of 21st century.

Moon in descending node

Moon is in descending node in ♒ Aquarius at 09:30 crossing the ecliptic from North to South to meet ascending node 13 days later on 4 October 2018 at 03:10 in ♌ Leo.

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Draconic month

13 days since the beginning of current draconic month in ♋ Cancer, the Moon is navigating from the middle to the last part of the cycle.

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Moon after southern standstill

2 days since the previous standstill on 18 September 2018 at 09:35 in ♑ Capricorn when the Moon has reached South declination of ∠-20.909°, the lunar orbit is extending northward over the next 12 days to face maximum declination of ∠21.037° at the point of next northern standstill on 2 October 2018 at 13:03 in ♋ Cancer.

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Syzygy in 4 days

In 4 days on 25 September 2018 at 02:53 in ♈ Aries 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.

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