Waning Gibbous on

Moon phase on 4 September 2015 Friday is Waning Gibbous, 21 days old Moon is in Gemini.

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Moon phase for

Lunar calendar 2015 | September 2015

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

Waning Gibbous 60% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 60% and getting smaller. The 21 days old Moon is in ♊ Gemini.

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Moon phases for next 7 days

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Moon phase and lunation details

5 days after Full Moon

Previous main lunar phase is the Full Moon before 5 days on 29 August 2015 at 18:35.

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 is entering ♊ Gemini

Moon is passing first ∠0° of ♊ Gemini tropical zodiac sector.

Apparent angular diameter ∠1923"

Lunar disc appears visually 1.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1923" and ∠1903".

Sturgeon Moon before 5 days

Next Full Moon is the Harvest Moon of September 2015 after 23 days on 28 September 2015 at 02:50.

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 193 / 1146

The Moon is 21 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 193 of Meeus index or 1146 from Brown series.

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Synodic month length 29.66 days

The length of the lunation is 29 days, 15 hours and 48 minutes. It is 1 hour and 36 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 3 hours and 4 minutes longer than the mean synodic month length. It is 3 hours and 59 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit position on

True anomaly ∠144.1°

At the beginning of the lunation cycle the true anomaly is ∠144.1°. At the beginning of next synodic month the true anomaly is going to be ∠169.3°.

Moon after perigee

4 days after point of perigee on 30 August 2015 at 15:24 in ♓ Pisces. The lunar orbit is getting widen, while the Moon is moving away from the Earth. It will keep this direction over the next 9 days, until the Moon reaches the point of next apogee on 14 September 2015 at 11:28 in ♎ Libra.

Previous perigeeNext apogee

Distance to Moon 372 667 km

The Moon is 372 667 km (231 565 mi) away from Earth and getting further over the next 9 days until the point apogee when Earth-Moon distance is going to be 406 466 km (252 566 mi).

Moon after descending node

4 days after descending node on 31 August 2015 at 10:16 in ♈ Aries. The Moon is located south of the ecliptic over the following 9 days, until the lunar orbit crosses from South to North in ascending node on 14 September 2015 at 04:38 in ♎ Libra.

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Draconic month

17 days since the beginning of current draconic month in ♍ Virgo, the Moon is navigating from the second to the final part of the cycle.

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Moon before northern standstill

10 days since the previous standstill on 25 August 2015 at 03:44 in ♐ Sagittarius when the Moon has reached South declination of ∠-18.206°, the lunar orbit is extending northward over the next 2 days to face maximum declination of ∠18.163° at the point of next northern standstill on 6 September 2015 at 17:06 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 8 days

In 8 days on 13 September 2015 at 06:41 in ♍ Virgo 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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