Waxing Crescent on

Moon phase on 17 January 2100 Sunday is Waxing Crescent, 6 days young Moon is in Aries.

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Moon phase for

Lunar calendar 2100 | January 2100

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

Waxing Crescent 40% illuminated

Waxing Crescent is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 40% and growing larger. The 6 days young Moon is in ♈ Aries.

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Moon phases for next 7 days

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Moon phase and lunation details

6 days after New Moon

Previous main lunar phase is the New Moon before 6 days on 10 January 2100 at 12:55.

Moonrise and moonset

Moon rises in the morning and sets in the evening. It is visible toward the southwest in early evening.

Moon in ♈ Aries

Moon is passing about ∠16° of ♈ Aries tropical zodiac sector.

Apparent angular diameter ∠1768"

Lunar disc appears visually 9.8% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1768" and ∠1950".

Wolf Moon after 8 days

Next Full Moon is the Wolf Moon of January 2100 after 8 days on 26 January 2100 at 02:49.

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 1237 / 2190

The Moon is 6 days young. Earth's natural satellite is moving from the beginning to the first part of current synodic month. This is lunation 1237 of Meeus index or 2190 from Brown series.

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Synodic month length 29.67 days

Length of current 1237 lunation is 29 days, 15 hours and 59 minutes. It is 1 hour and 35 minutes shorter than next lunation 1238 length.

Lunation length longer than mean

Length of current synodic month is 3 hours and 15 minutes longer than the mean length of synodic month, but it is still 3 hours and 48 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠81.3°

This New Moon true anomaly is ∠81.3°. At beginning of next synodic month true anomaly will be ∠119.1°. 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 10:48, this is 14 days after last perigee on 3 January 2100 at 08:57 in ♎ Libra. Lunar orbit is starting to get closer, while the Moon is moving inward the Earth for 11 days ahead, until it will get to the point of next perigee on 29 January 2100 at 05:53 in ♍ Virgo.

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Distance to Moon 404 420 km

This apogee Moon is 404 420 km (251 295 mi) away from Earth. It is 988 km farther than the mean apogee distance, but it is still 2 289 km closer than the farthest apogee of 21st century.

Moon after ascending node

2 days after its ascending node on 15 January 2100 at 03:56 in ♓ Pisces, the Moon is following the northern part of its orbit for the next 11 days, until it will cross the ecliptic from North to South in descending node on 29 January 2100 at 00:35 in ♍ Virgo.

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Draconic month

2 days after beginning of current draconic month in ♓ Pisces, the Moon is moving from the beginning to the first part of it.

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Moon before northern standstill

8 days after previous South standstill on 8 January 2100 at 21:59 in ♐ Sagittarius, when Moon has reached southern declination of ∠-28.379°. Next 5 days the lunar orbit moves northward to face North declination of ∠28.437° in the next northern standstill on 23 January 2100 at 08:16 in ♊ Gemini.

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Syzygy in 8 days

After 8 days on 26 January 2100 at 02:49 in ♌ Leo, 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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