First Quarter Moon
First Quarter MoonImage credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.(large image)

First Quarter in Sagittarius

First Quarter on . Illuminated surface of the Moon is 52% and growing larger. Lunar cycle is 7 days young.

* The exact date and time of this First Quarter phase is on 31 August 2025 at 06:25 UTC.

Moonrise and moonset

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

Upcoming main moon phases

Main moon phases of the following lunar cycle.

Moon phase and lunation details

Moon in ♐ Sagittarius

Moon is passing about ∠11° of ♐ Sagittarius tropical zodiac sector.

Harvest Moon after 7 days

Next Full Moon is the Harvest Moon of September 2025 after 7 days on 7 September 2025 at 18:09.

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.

Apparent angular diameter ∠1776"

Lunar disc appears visually 6.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1776" and ∠1901".

Lunation 317 / 1270

The Moon is 7 days young and navigating through the first part of the current synodic month. This is lunation 317 of Meeus index or 1270 from Brown series.

Synodic month length 29.58 days

The length of this lunation is 29 days, 13 hours and 48 minutes and it is 2 hours and 43 minutes shorter than the upcoming lunation's length. The lengths of the following synodic months are going to increase with the lunar orbit true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length longer than mean

The length of the current synodic month is 1 hour and 4 minutes longer than the mean synodic month length. It is 5 hours and 59 minutes shorter compared to 21st century's longest synodic month length.

Lunar orbit details for

True anomaly ∠93°

The true anomaly of the Moon orbit at the beginning of this lunation cycle is ∠93° and at the beginning of the next lunar synodic month the true anomaly is going to be ∠127.7°.

Moon after apogee

1 day since point of apogee on 29 August 2025 at 15:34 in ♏ Scorpio the lunar orbit is getting narrow while the Moon is moving towards the Earth. It will keep this direction over the next 10 days until the Moon reaches the point of next perigee on 10 September 2025 at 12:09 in ♈ Aries.

Distance to Moon 403 553 km

The Moon is 403 553 km (250 756 mi) away from Earth and getting closer over the next 10 days until the point perigee when Earth-Moon distance is going to be 364 781 km (226 664 mi).

Moon after descending node

6 days after descending node on 24 August 2025 at 15:41 in ♍ Virgo the Moon is positioned south of the ecliptic over the following 7 days until the lunar crosses the ecliptic again from South to North in ascending node on 7 September 2025 at 23:08 in ♓ Pisces.

Moon before southern standstill

12 days since the last northern standstill on 18 August 2025 at 15:59 in ♊ Gemini when the Moon has reached North declination of ∠28.585° the lunar orbit is extending southward over the next day to face maximum declination of ∠-28.623° at the point of next southern standstill on 1 September 2025 at 22:04 in ♐ Sagittarius.

Draconic month

19 days since the beginning of this draconic month in ♓ Pisces the Moon is navigating from the second to the final part of the lunar cycle.

Syzygy in 7 days

In 7 days on 7 September 2025 at 18:09 in ♓ Pisces 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.

Lunar calendar

Sources and credits

Parts of this Lunar Calendar are based on Planetary Ephemeris Data Courtesy of Fred Espenak, www.Astropixels.com

Moon phase image credit to NASA/Goddard Space Flight Center Scientific Visualization Studio, svs.gsfc.nasa.gov