Waxing Gibbous on

Moon phase on 17 September 2013 Tuesday is Waxing Gibbous, 12 days young Moon is in Aquarius.

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Moon phase for

Lunar calendar 2013 | September 2013

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

Waxing Gibbous 95% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 95% and growing larger. The 12 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

4 days after First Quarter

Previous main lunar phase is the First Quarter before 4 days on 12 September 2013 at 17:08.

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 leaving the last ∠1° of ♒ Aquarius tropical zodiac sector and will enter ♓ Pisces later.

Apparent angular diameter ∠1939"

Lunar disc appears visually 1.5% wider than solar disc. Moon and Sun apparent angular diameters are ∠1939" and ∠1909".

Harvest Moon after 1 day

Next Full Moon is the Harvest Moon of September 2013 after 1 day on 19 September 2013 at 11:13.

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 169 / 1122

The Moon is 12 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 169 of Meeus index or 1122 from Brown series.

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Synodic month length 29.54 days

Length of current 169 lunation is 29 days, 12 hours and 58 minutes. It is 43 minutes longer than next lunation 170 length.

Lunation length longer than mean

Length of current synodic month is 14 minutes longer than the mean length of synodic month, but it is still 6 hours and 49 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠249.2°

This lunation true anomaly is ∠249.2°. At the beginning of next synodic month true anomaly will be ∠285.3°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).

Moon after perigee

1 day after point of perigee on 15 September 2013 at 16:34 in ♑ Capricorn. 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 27 September 2013 at 18:17 in ♋ Cancer.

Previous perigeeNext apogee

Distance to Moon 369 683 km

Moon is 369 683 km (229 710 mi) away from Earth on this date. Moon moves farther next 10 days until apogee, when Earth-Moon distance will reach 404 309 km (251 226 mi).

Moon before descending node

7 days after its ascending node on 9 September 2013 at 17:29 in ♏ Scorpio, the Moon is following the northern part of its orbit for the next 5 days, until it will cross the ecliptic from North to South in descending node on 22 September 2013 at 13:48 in ♉ Taurus.

Previous nodeNext node

Draconic month

7 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the beginning to the first part of it.

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Moon after southern standstill

4 days after previous South standstill on 12 September 2013 at 18:30 in ♐ Sagittarius, when Moon has reached southern declination of ∠-19.685°. Next 8 days the lunar orbit moves northward to face North declination of ∠19.599° in the next northern standstill on 26 September 2013 at 01:03 in ♊ Gemini.

Previous standstillNext standstill

Syzygy in 1 day

After 1 day on 19 September 2013 at 11:13 in ♓ Pisces, the Moon will be in Full Moon geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

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