Lunar Calendar Month September 2023 (Sweden)

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 Stockholm, Sweden during September 2023.

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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
3rd quarter	2023-09-07	00:21
new moon	2023-09-15	03:40
1st quarter	2023-09-22	21:32
full moon	2023-09-29	11:57

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during September 2023.

Position	Dates	Time	Distance	Notes
Apogee	2023-09-12	17:44	406,288 km
Perigee	2023-09-28	03:06	359,910 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
Jupiter	2023-09-04 21:44
Pleiades	2023-09-05 21:25
Pollux	2023-09-10 05:32
Spica	2023-09-17 17:12
Antares	2023-09-21 09:50
Saturn	2023-09-27 03:25

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 30 days of September 2023.

September 2023
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 35	28 Monday	29 Tuesday	30 Wednesday	31 Thursday	1Friday 98.9% illuminated Age: 15.7	2Saturday 94.9% illuminated Age: 16.9	3Sunday 88.5% illuminated Age: 18
Week 36	4Monday 80.1% illuminated Age: 19.1	5Tuesday 70.6% illuminated Age: 20.2	6Wednesday 60.4% illuminated Age: 21.2	7Thursday 50.1% illuminated Age: 22.1	8Friday 40.2% illuminated Age: 23.1	9Saturday 30.8% illuminated Age: 24	10Sunday 22.3% illuminated Age: 24.9
Week 37	11Monday 14.9% illuminated Age: 25.8	12Tuesday 8.8% illuminated Age: 26.7	13Wednesday 4.2% illuminated Age: 27.6	14Thursday 1.2% illuminated Age: 28.5	15Friday 0% illuminated Age: 29.4	16Saturday 0.7% illuminated Age: 0.8	17Sunday 3.1% illuminated Age: 1.7
Week 38	18Monday 7.5% illuminated Age: 2.6	19Tuesday 13.6% illuminated Age: 3.5	20Wednesday 21.2% illuminated Age: 4.5	21Thursday 30.3% illuminated Age: 5.5	22Friday 40.4% illuminated Age: 6.5	23Saturday 51.3% illuminated Age: 7.5	24Sunday 62.3% illuminated Age: 8.6
Week 39	25Monday 73.1% illuminated Age: 9.6	26Tuesday 82.8% illuminated Age: 10.7	27Wednesday 90.9% illuminated Age: 11.9	28Thursday 96.6% illuminated Age: 13	29Friday 99.6% illuminated Age: 14.2	30Saturday 99.6% illuminated Age: 15.3	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