Waxing Gibbous on

Moon phase on 4 September 2017 Monday is Waxing Gibbous, 13 days young Moon is in Aquarius.

Share this page: twitter facebook linkedin

Moon phase for

Lunar calendar 2017 | September 2017

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

Waxing Gibbous 97% illuminated

Waxing Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 97% and growing larger. The 13 days young Moon is in ♒ Aquarius.

Previous date | Moon Today | Next date

Moon phases for next 7 days

7 days ago | 7 days after

Moon phase and lunation details

6 days after First Quarter

Previous main lunar phase is the First Quarter before 6 days on 29 August 2017 at 08:13.

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 passing about ∠21° of ♒ Aquarius tropical zodiac sector.

Apparent angular diameter ∠1817"

Lunar disc appears visually 4.6% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1817" and ∠1903".

Harvest Moon after 1 day

Next Full Moon is the Harvest Moon of September 2017 after 1 day on 6 September 2017 at 07:03.

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 218 / 1171

The Moon is 13 days young. Earth's natural satellite is moving from the first to the middle part of current synodic month. This is lunation 218 of Meeus index or 1171 from Brown series.

PreviousCurrent lunationNext

Synodic month length 29.46 days

The length of the lunation is 29 days, 11 hours and 1 minute. It is 2 hours and 42 minutes shorter than the next lunation's length. The lengths of the following synodic months are going to increasing with the true anomaly getting closer to the value it has at the point of New Moon at apogee (∠180°).

Lunation length shorter than mean

The length of the current synodic month is 1 hour and 44 minutes shorter than the mean synodic month length. It is 4 hours and 25 minutes longer compared to 21st century's shortest synodic month length.

Lunar orbit position on

True anomaly ∠49.5°

At the beginning of the lunation cycle the true anomaly is ∠49.5°. At the beginning of next synodic month the true anomaly is going to be ∠79°.

Moon after apogee

5 days after point of apogee on 30 August 2017 at 11:25 in ♐ Sagittarius. The lunar orbit is getting narrow, while the Moon is moving towards the Earth. It will keep this direction over the next 9 days, until the Moon reaches the point of next perigee on 13 September 2017 at 16:04 in ♊ Gemini.

Previous apogeeNext perigee

Distance to Moon 394 515 km

The Moon is 394 515 km (245 140 mi) away from Earth and getting closer over the next 9 days until the point perigee when Earth-Moon distance is going to be 369 856 km (229 818 mi).

Moon in descending node

Moon is in descending node in ♒ Aquarius at 18:41 crossing the ecliptic from North to South to meet ascending node 13 days later on 17 September 2017 at 18:28 in ♌ Leo.

Previous nodeNext node

Draconic month

14 days since the beginning of current draconic month in ♌ Leo, the Moon is navigating from the second to the final part of the cycle.

PreviousCurrent draconic monthNext

Moon after southern standstill

3 days since the previous standstill on 1 September 2017 at 02:03 in ♑ Capricorn when the Moon has reached South declination of ∠-19.393°, the lunar orbit is extending northward over the next 10 days to face maximum declination of ∠19.438° at the point of next northern standstill on 14 September 2017 at 13:00 in ♋ Cancer.

Previous standstillNext standstill

Syzygy in 1 day

In 1 day on 6 September 2017 at 07:03 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.

Previous syzygyNext syzygy

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