First Quarter on

Moon phase on 13 September 2013 Friday is First Quarter, 8 days young Moon is in Capricorn.

Share this page: twitter facebook google+ linkedin

Moon phase for

Lunar calendar 2013 | September 2013

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

First Quarter 59% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 59% and growing larger. The 8 days young Moon is in ♑ Capricorn.

* The exact date and time of this First Quarter phase is on 12 September 2013 at 17:08 UTC.

Previous date | Moon Today | Next date

Moon phases for next 7 days

7 days ago | 7 days after

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 is entering ♑ Capricorn

Moon is passing first ∠1° of ♑ Capricorn tropical zodiac sector.

Apparent angular diameter ∠1972"

Lunar disc appears visually 3.3% wider than solar disc. Moon and Sun apparent angular diameters are ∠1972" and ∠1907".

Harvest Moon after 5 days

Next Full Moon is the Harvest Moon of September 2013 after 5 days 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 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 169 of Meeus index or 1122 from Brown series.

PreviousCurrent lunationNext

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 before perigee

13 days after point of apogee on 30 August 2013 at 23:46 in ♋ Cancer. The lunar orbit is getting closer, while the Moon is moving inward the Earth. It will keep this direction for the next 2 days, until it get to the point of next perigee on 15 September 2013 at 16:34 in ♑ Capricorn.

Previous apogeeNext perigee

Distance to Moon 363 522 km

Moon is 363 522 km (225 882 mi) away from Earth on this date. Moon moves closer next 2 days until perigee, when Earth-Moon distance will reach 367 388 km (228 284 mi).

Moon after ascending node

3 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 9 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

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

PreviousCurrent draconic monthNext

Moon after southern standstill

1 day after previous South standstill on 12 September 2013 at 18:30 in ♐ Sagittarius, when Moon has reached southern declination of ∠-19.685°. Next 12 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 5 days

After 5 days on 19 September 2013 at 11:13 in ♓ Pisces, the Moon will be in First Quarter geocentric opposition with the Sun and this alignment forms next Sun-Earth-Moon syzygy.

Previous syzygyNext syzygy

Share this page: twitter facebook google+ linkedin
Back to: Top of page