Waning
Gibbous ♒ Aquarius
Moon phase on 31 May 2010 Monday is Waning Gibbous, 18 days old Moon is in Capricorn.
Share this page: twitter facebook linkedinWaning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 87% and getting smaller. The 18 days old Moon is in ♑ Capricorn.
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Previous main lunar phase is the Full Moon before 3 days on 27 May 2010 at 23:07.
Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.
Moon is passing about ∠21° of ♑ Capricorn tropical zodiac sector.
Lunar disc appears visually 5.7% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1787" and ∠1892".
Next Full Moon is the Strawberry Moon of June 2010 after 25 days on 26 June 2010 at 11:30.
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.
The Moon is 18 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 128 of Meeus index or 1081 from Brown series.
Length of current 128 lunation is 29 days, 10 hours and 10 minutes. It is 1 hour and 44 minutes longer than next lunation 129 length.
Length of current synodic month is 2 hours and 34 minutes shorter than the mean length of synodic month, but it is still 3 hours and 35 minutes longer, compared to 21st century shortest.
This lunation true anomaly is ∠282.4°. At the beginning of next synodic month true anomaly will be ∠311.3°. 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°).
11 days after point of perigee on 20 May 2010 at 08:38 in ♌ Leo. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 3 days, until it get to the point of next apogee on 3 June 2010 at 16:50 in ♒ Aquarius.
Moon is 400 993 km (249 165 mi) away from Earth on this date. Moon moves farther next 3 days until apogee, when Earth-Moon distance will reach 404 266 km (251 199 mi).
1 day after its ascending node on 30 May 2010 at 18:07 in ♑ Capricorn, the Moon is following the northern part of its orbit for the next 13 days, until it will cross the ecliptic from North to South in descending node on 13 June 2010 at 21:54 in ♋ Cancer.
1 day after beginning of current draconic month in ♑ Capricorn, the Moon is moving from the beginning to the first part of it.
2 days after previous South standstill on 28 May 2010 at 22:09 in ♐ Sagittarius, when Moon has reached southern declination of ∠-25.029°. Next 11 days the lunar orbit moves northward to face North declination of ∠25.030° in the next northern standstill on 12 June 2010 at 07:06 in ♊ Gemini.
After 11 days on 12 June 2010 at 11:15 in ♊ Gemini, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.