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Challenges
Bortle 4: rural and suburban sky
A rural and suburban sky. Galaxies lose some contrast. Nebulae and star clusters show well.
59 images by 6 photographers.
1
(0)
2
(6)
3
(7)
4
(59)
5
(37)
6
(297)
7
(250)
8
(0)
9
(1)
Most imaged objects from Bortle 4
π Sco
Fang
1 image
M 4
1 image
14 Sgr
1 image
M 19
1 image
M 21
1 image
M 12
1 image
M 22
1 image
M 16
Eagle Nebula
1 image
M 81
Bode's Galaxy
1 image
M 17
Omega Nebula
1 image
NGC 6235
1 image
M 80
1 image
Best images from Bortle 4
The Bortle class of an image comes from the light pollution map at its position, or from the owner. The map never gives class 9. For class 9, the owner sets the class.
Spain 2026
Miker
Plus
4
27
4 likes, 27 views
Aurora church
AstroKris (admin)
Pro
4
24
4 likes, 24 views
IMG 3024
starhopper
Free
3
20
3 likes, 20 views
Starry night at La Palma
AstroKris (admin)
Pro
3
13
3 likes, 13 views
Sh2-1
Davy Viaene
Free
2
16
2 likes, 16 views
NGC 6888
DeepSkyKurt
Plus
1
1
1 like, 1 view
NGC 6514
DeepSkyKurt
Plus
1
3
1 like, 3 views
M 17
DeepSkyKurt
Plus
1
0
1 like, 0 views
M 16
DeepSkyKurt
Plus
1
1
1 like, 1 view
M 106
DeepSkyKurt
Plus
1
0
1 like, 0 views
M 107
DeepSkyKurt
Plus
1
3
1 like, 3 views
Aurora
Stijn Vanderheiden
Free
1
14
1 like, 14 views
NGC 6822
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6445
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 69
DeepSkyKurt
Plus
0
1
0 likes, 1 view
M 62
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6284
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6139
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6287
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6426
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 12
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 22
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6304
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 51
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 80
DeepSkyKurt
Plus
0
1
0 likes, 1 view
Barnard 72
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6369
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 5897
DeepSkyKurt
Plus
0
0
0 likes, 0 views
NGC 6342
DeepSkyKurt
Plus
0
0
0 likes, 0 views
M 70
DeepSkyKurt
Plus
0
0
0 likes, 0 views
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