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Lunar Calendar Northern Hemisphere 2023 › Moon Northern Hemisphere September 2023

Lunar Calendar Month September 2023 (Northern Hemisphere)

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 Washington, Northern Hemisphere during September 2023.

Choose a country from the list to get relevant information:

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 phasesDatesTime
3rd quarter2023-09-0618:21
new moon2023-09-1421:40
1st quarter2023-09-2215:32
full moon2023-09-2905:57

Apogee and perigee of the Moon

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

PositionDatesTimeDistanceNotes
Apogee2023-09-1211:44406,288 km
Perigee2023-09-2721:06359,910 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 ObjectsDate and Time
Jupiter2023-09-04 15:44
Pleiades2023-09-05 15:25
Pollux2023-09-09 23:32
Spica2023-09-17 11:12
Antares2023-09-21 03:50
Saturn2023-09-26 21:25

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
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 35
28 Monday
 
29 Tuesday
 
30 Wednesday
 
31 Thursday
 
1Friday
 
98.2% illuminated
Age: 16
2Saturday
 
93.5% illuminated
Age: 17.2
3Sunday
 
86.5% illuminated
Age: 18.3
Week 36
4Monday
 
77.8% illuminated
Age: 19.4
5Tuesday
 
68.1% illuminated
Age: 20.4
6Wednesday
 
57.8% illuminated
Age: 21.4
7Thursday
 
47.6% illuminated
Age: 22.4
8Friday
 
37.8% illuminated
Age: 23.3
9Saturday
 
28.6% illuminated
Age: 24.2
10Sunday
 
20.3% illuminated
Age: 25.1
Week 37
11Monday
 
13.3% illuminated
Age: 26
12Tuesday
 
7.5% illuminated
Age: 26.9
13Wednesday
 
3.3% illuminated
Age: 27.8
14Thursday
 
0.8% illuminated
Age: 28.7
15Friday
 
0% illuminated
Age: 0.1
16Saturday
 
1.1% illuminated
Age: 1
17Sunday
 
4.1% illuminated
Age: 1.9
Week 38
18Monday
 
8.8% illuminated
Age: 2.8
19Tuesday
 
15.3% illuminated
Age: 3.8
20Wednesday
 
23.4% illuminated
Age: 4.7
21Thursday
 
32.7% illuminated
Age: 5.7
22Friday
 
43.1% illuminated
Age: 6.7
23Saturday
 
54% illuminated
Age: 7.8
24Sunday
 
65.1% illuminated
Age: 8.8
Week 39
25Monday
 
75.6% illuminated
Age: 9.9
26Tuesday
 
85% illuminated
Age: 11
27Wednesday
 
92.6% illuminated
Age: 12.2
28Thursday
 
97.7% illuminated
Age: 13.3
29Friday
 
99.9% illuminated
Age: 14.5
30Saturday
 
99.2% illuminated
Age: 15.6
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
 
Content last updated on 2018-10-21T17:33:00Z