First Quarter on

Moon phase on 18 December 2007 Tuesday is First Quarter, 8 days young Moon is in Aries.

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Moon phase for

Lunar calendar 2007 | December 2007

First Quarter phase
First Quarter phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

First Quarter 62% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 62% and growing larger. The 8 days young Moon is in ♈ Aries.

* The exact date and time of this First Quarter phase is on 17 December 2007 at 10:17 UTC.

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Moon phases for next 7 days

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Moon phase and lunation details

Moonrise and moonset

Moon rises at noon and sets at midnight. It is visible high in the southern sky in early evening.

Moon in ♈ Aries

Moon is passing about ∠10° of ♈ Aries tropical zodiac sector.

Apparent angular diameter ∠1953"

Lunar disc appears visually 0.1% wider than solar disc. Moon and Sun apparent angular diameters are ∠1953" and ∠1950".

Cold Moon after 5 days

Next Full Moon is the Cold Moon of December 2007 after 5 days on 24 December 2007 at 01:16.

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 98 / 1051

The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 98 of Meeus index or 1051 from Brown series.

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Synodic month length 29.75 days

The length of the lunation is 29 days, 17 hours and 57 minutes. It is 1 hour and 50 minutes longer than the next lunation's length. The lengths of the following synodic months are going to decreasing with the true anomaly getting closer to the value it has at the point of New Moon at perigee (∠0° or ∠360°).

Lunation length longer than mean

The length of the current synodic month is 5 hours and 13 minutes longer than the mean synodic month length. It is 1 hour and 50 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit position on

True anomaly ∠209.6°

At the beginning of the lunation cycle the true anomaly is ∠209.6°. At the beginning of next synodic month the true anomaly is going to be ∠242.4°.

Moon before apogee

11 days after point of apogee on 6 December 2007 at 16:54 in ♏ Scorpio. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 3 days, until the Moon reaches the point of next perigee on 22 December 2007 at 10:11 in ♊ Gemini.

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Distance to Moon 367 048 km

The Moon is 367 048 km (228 073 mi) away from Earth and getting closer over the next 3 days until the point perigee when Earth-Moon distance is going to be 360 817 km (224 201 mi).

Moon after ascending node

2 days after ascending node on 15 December 2007 at 13:15 in ♒ Aquarius. The Moon is located north of the ecliptic over the following 9 days, until the lunar orbit crosses from North to South in descending node on 28 December 2007 at 02:57 in ♌ Leo.

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Draconic month

2 days since the beginning of current draconic month in ♒ Aquarius, the Moon is navigating from the beginning to the first part of the cycle.

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Moon before northern standstill

8 days since the previous standstill on 10 December 2007 at 09:41 in ♐ Sagittarius when the Moon has reached South declination of ∠-27.906°, the lunar orbit is extending northward over the next 5 days to face maximum declination of ∠27.918° at the point of next northern standstill on 23 December 2007 at 14:26 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 5 days

In 5 days on 24 December 2007 at 01:16 in ♋ Cancer 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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