Waning Gibbous on

Moon phase on 4 September 2001 Tuesday is Waning Gibbous, 16 days old Moon is in Pisces.

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Moon phase for

Lunar calendar 2001 | September 2001

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

Waning Gibbous 98% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 98% and getting smaller. The 16 days old Moon is in ♓ Pisces.

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Moon phases for next 7 days

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Moon phase and lunation details

1 day after Full Moon

Previous main lunar phase is the Full Moon before 1 day on 2 September 2001 at 21:43.

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 ♓ Pisces

Moon is passing first ∠0° of ♓ Pisces tropical zodiac sector.

Apparent angular diameter ∠1779"

Lunar disc appears visually 6.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1779" and ∠1903".

Harvest Moon before 1 day

Next Full Moon is the Hunter Moon of October 2001 after 28 days on 2 October 2001 at 13:49.

Upcoming main Moon phases

Moderate tide

There is medium ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at very acute angle, so their combined tidal force is moderate.

Lunation 20 / 973

The Moon is 16 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 20 of Meeus index or 973 from Brown series.

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Synodic month length 29.31 days

The length of the lunation is 29 days, 7 hours and 32 minutes. It is 1 hour and 24 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 5 hours and 12 minutes shorter than the mean synodic month length. It is 57 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠358.1°

At the beginning of the lunation cycle the true anomaly is ∠358.1°. At the beginning of next synodic month the true anomaly is going to be ∠13.2°.

Moon after apogee

2 days after point of apogee on 1 September 2001 at 23:26 in ♒ Aquarius. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 12 days, until the Moon reaches the point of next perigee on 16 September 2001 at 15:50 in ♍ Virgo.

Previous apogeeNext perigee

Distance to Moon 402 810 km

The Moon is 402 810 km (250 295 mi) away from Earth and getting closer over the next 12 days until the point perigee when Earth-Moon distance is going to be 358 128 km (222 530 mi).

Moon after descending node

7 days after descending node on 28 August 2001 at 09:09 in ♑ Capricorn. The Moon is located south of the ecliptic over the following 7 days, until the lunar orbit crosses from South to North in ascending node on 11 September 2001 at 21:36 in ♊ Gemini.

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Draconic month

19 days since the beginning of current draconic month in ♊ Gemini, the Moon is navigating from the second to the final part of the cycle.

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Moon after southern standstill

6 days since the previous standstill on 28 August 2001 at 23:14 in ♑ Capricorn when the Moon has reached South declination of ∠-23.546°, the lunar orbit is extending northward over the next 8 days to face maximum declination of ∠23.677° at the point of next northern standstill on 12 September 2001 at 12:19 in ♋ Cancer.

Previous standstillNext standstill

Syzygy in 12 days

In 12 days on 17 September 2001 at 10:27 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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