Lunar Calendar Month August 2021 (Spain)

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 Madrid, Spain during August 2021.

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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
new moon	2021-08-08	15:50
1st quarter	2021-08-15	17:19
full moon	2021-08-22	14:02
3rd quarter	2021-08-30	09:13

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during August 2021.

Position	Dates	Time	Distance
Apogee	2021-08-02	09:36	404,410 km
Perigee	2021-08-17	11:25	369,126 km
Apogee	2021-08-30	04:23	404,098 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
Venus	2021-08-11 09:00
Saturn	2021-08-21 00:19
Jupiter	2021-08-22 06:52

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of August 2021.

August 2021
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 30	26Monday	27Tuesday	28Wednesday	29Thursday	30Friday	31Saturday	1Sunday 46.6% illuminated Age:22.5
Week 31	2Monday 37.3% illuminated Age:23.4	3Tuesday 28.4% illuminated Age:24.2	4Wednesday 20.2% illuminated Age:25.1	5Thursday 13.1% illuminated Age:26.1	6Friday 7.2% illuminated Age:27	7Saturday 2.9% illuminated Age:27.9	8Sunday 0.5% illuminated Age:28.9
Week 32	9Monday 0.1% illuminated Age:0.3	10Tuesday 2% illuminated Age:1.3	11Wednesday 6.2% illuminated Age:2.4	12Thursday 12.6% illuminated Age:3.4	13Friday 21% illuminated Age:4.5	14Saturday 30.8% illuminated Age:5.5	15Sunday 41.8% illuminated Age:6.6
Week 33	16Monday 53.2% illuminated Age:7.7	17Tuesday 64.5% illuminated Age:8.8	18Wednesday 75.1% illuminated Age:9.9	19Thursday 84.3% illuminated Age:10.9	20Friday 91.7% illuminated Age:12	21Saturday 96.9% illuminated Age:13.1	22Sunday 99.6% illuminated Age:14.2
Week 34	23Monday 99.8% illuminated Age:15.2	24Tuesday 97.6% illuminated Age:16.2	25Wednesday 93.4% illuminated Age:17.2	26Thursday 87.5% illuminated Age:18.2	27Friday 80.2% illuminated Age:19.1	28Saturday 71.9% illuminated Age:20	29Sunday 63% illuminated Age:20.9
Week 35	30Monday 53.6% illuminated Age:21.8	31Tuesday 44.2% illuminated Age:22.7	1Wednesday	2Thursday	3Friday	4Saturday	5Sunday
	6Monday	7Tuesday	8Wednesday	9Thursday	10Friday	11Saturday	12Sunday