Lunar Calendar Month May 2025 (Cocos Islands)

The Moon is the only natural satellite of the Earth and the fifth largest moon in the Solar System. It is the largest natural satellite in the solar system relative to the size of its planet. The following is information specific for West Island, Cocos Islands during May 2025.

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Date and time of moon phases

The information in the following table comes from calculations published by the Astronomical Applications Department of the U.S. Naval Observatory.

Moon phases	Dates	Time
1st quarter	2025-05-04	20:22
full moon	2025-05-12	23:26
3rd quarter	2025-05-20	18:29
new moon	2025-05-27	09:32

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during May 2025.

Position	Dates	Time	Distance	Notes
Apogee	2025-05-11	07:20	406,244 km
Perigee	2025-05-26	08:08	359,022 km

Moon-Planet Conjunctions

A Moon-planet conjunction occurs when an astronomical object has either the same, or nearly the same, right ascension or the same ecliptic longitude of that of the Moon, as observed from Earth.

Astronomical Objects	Date and Time
Pollux	2025-05-03 06:32
Mars	2025-05-04 05:42
Beehive	2025-05-04 05:57
Regulus	2025-05-06 00:28
Spica	2025-05-10 14:13
Antares	2025-05-14 10:40
Saturn	2025-05-23 00:21
Venus	2025-05-24 06:22
Pollux	2025-05-30 15:43
Beehive	2025-05-31 14:30

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of May 2025.

May 2025
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 18	28 Monday	29 Tuesday	30 Wednesday	1Thursday 12.3% illuminated Age: 3.4	2Friday 20.9% illuminated Age: 4.5	3Saturday 30.7% illuminated Age: 5.5	4Sunday 41% illuminated Age: 6.5
Week 19	5Monday 51.4% illuminated Age: 7.5	6Tuesday 61.5% illuminated Age: 8.5	7Wednesday 70.8% illuminated Age: 9.4	8Thursday 79.2% illuminated Age: 10.3	9Friday 86.4% illuminated Age: 11.2	10Saturday 92.2% illuminated Age: 12.1	11Sunday 96.5% illuminated Age: 13
Week 20	12Monday 99.2% illuminated Age: 13.9	13Tuesday 100% illuminated Age: 14.8	14Wednesday 99% illuminated Age: 15.7	15Thursday 96.2% illuminated Age: 16.6	16Friday 91.6% illuminated Age: 17.5	17Saturday 85.3% illuminated Age: 18.5	18Sunday 77.6% illuminated Age: 19.4
Week 21	19Monday 68.4% illuminated Age: 20.4	20Tuesday 58.3% illuminated Age: 21.4	21Wednesday 47.6% illuminated Age: 22.4	22Thursday 36.6% illuminated Age: 23.4	23Friday 26% illuminated Age: 24.5	24Saturday 16.4% illuminated Age: 25.6	25Sunday 8.5% illuminated Age: 26.8
Week 22	26Monday 2.9% illuminated Age: 27.9	27Tuesday 0.2% illuminated Age: 29.1	28Wednesday 0.6% illuminated Age: 0.7	29Thursday 3.8% illuminated Age: 1.8	30Friday 9.5% illuminated Age: 2.9	31Saturday 17.1% illuminated Age: 4	1 Sunday
	2 Monday	3 Tuesday	4 Wednesday	5 Thursday	6 Friday	7 Saturday	8 Sunday
	9 Monday	10 Tuesday	11 Wednesday	12 Thursday	13 Friday	14 Saturday	15 Sunday