First Quarter on

Moon phase on 17 October 2018 Wednesday is First Quarter, 8 days young Moon is in Aquarius.

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Moon phase for

Lunar calendar 2018 | October 2018

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

First Quarter 57% illuminated

First Quarter is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 57% and growing larger. The 8 days young Moon is in ♒ Aquarius.

* The exact date and time of this First Quarter phase is on 16 October 2018 at 18:02 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 is entering ♒ Aquarius

Moon is passing first ∠2° of ♒ Aquarius tropical zodiac sector.

Apparent angular diameter ∠1768"

Lunar disc appears visually 8.5% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1926".

Hunter Moon after 7 days

Next Full Moon is the Hunter Moon of October 2018 after 7 days on 24 October 2018 at 16:45.

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 232 / 1185

The Moon is 8 days young. Earth's natural satellite is moving through the first part of current synodic month. This is lunation 232 of Meeus index or 1185 from Brown series.

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Synodic month length 29.51 days

Length of current 232 lunation is 29 days, 12 hours and 15 minutes. It is 3 hours and 3 minutes shorter than next lunation 233 length.

Lunation length shorter than mean

Length of current synodic month is 29 minutes shorter than the mean length of synodic month, but it is still 5 hours and 40 minutes longer, compared to 21st century shortest.

Lunar orbit position on

True anomaly ∠49.6°

This New Moon true anomaly is ∠49.6°. At beginning of next synodic month true anomaly will be ∠79.7°. The length of upcoming synodic months will keep increasing since the true anomaly gets closer to the value of New Moon at point of apogee (∠180°).

Moon in apogee

Moon is reaching point of apogee on this date at 19:16, this is 11 days after last perigee on 5 October 2018 at 22:29 in ♌ Leo. Lunar orbit is starting to get closer, while the Moon is moving inward the Earth for 14 days ahead, until it will get to the point of next perigee on 31 October 2018 at 20:05 in ♌ Leo.

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Distance to Moon 404 227 km

This apogee Moon is 404 227 km (251 175 mi) away from Earth. It is 1 181 km farther than the mean apogee distance, but it is still 2 482 km closer than the farthest apogee of 21st century.

Moon in descending node

Moon is in descending node in ♒ Aquarius at 12:03 on this date, it crosses the ecliptic from North to South. Moon will follow the southern part of its orbit for the next 13 days to meet ascending node on 31 October 2018 at 03:46 in ♌ Leo.

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Draconic month

13 days after beginning of current draconic month in ♌ Leo, the Moon is moving from the middle to the last part of it.

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Moon after southern standstill

1 day after previous South standstill on 15 October 2018 at 17:26 in ♑ Capricorn, when Moon has reached southern declination of ∠-21.154°. Next 12 days the lunar orbit moves northward to face North declination of ∠21.292° in the next northern standstill on 29 October 2018 at 18:34 in ♋ Cancer.

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Syzygy in 7 days

After 7 days on 24 October 2018 at 16:45 in ♈ Aries, 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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