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December 2025

Rennes, France48.1173, -1.6778
lightpollutionmap.info
Light Pollution:
Bortle 6SQM 19.2
1→ 2
3
Difficult
2→ 3
2
Difficult
3→ 4
1
Difficult
4→ 5
0
Difficult
5→ 6
0
Difficult
6→ 7
1
Difficult
7→ 8
2
Difficult
8→ 9
2
Difficult
9→ 10
3
Difficult
10→ 11
4
Difficult
11→ 12
5
Moderate, begin of night
12→ 13
5
Moderate, begin of night
13→ 14
6
Moderate, begin of night
14→ 15
7
Moderate, begin of night
15→ 16
7
Moderate, begin of night
16→ 17
8
Excellent
17→ 18
9
Excellent
18→ 19
9
Excellent
19→ 20
10
Excellent
20→ 21
10
Excellent
21→ 22
9
Excellent
22→ 23
9
Excellent
23→ 24
8
Excellent
24→ 25
7
Moderate, end of night
25→ 26
7
Moderate, end of night
26→ 27
6
Moderate, end of night
27→ 28
5
Moderate, end of night
28→ 29
4
Moderate, end of night
29→ 30
4
Difficult
30→ 31
3
Difficult
31→ 1
2
Difficult