Bortle 9: inner city skyAn inner city sky. The Moon, the planets, bright star clusters and emission nebulae with a narrowband filter are good targets. A longer total exposure helps.
1 image by 1 photographer.
Most imaged objects from Bortle 9
Challenges for this skyAn image from a Bortle 9 sky counts for these challenges.
City starter from Bortle 7+Bortle 7+The 10 brightest Messier objects north of declination -19°. From Europe and North America they rise high above the horizon. Only images from a sky of Bortle class 7, 8 or 9 count.10 objects
City starter from Bortle 8+Bortle 8+The 10 brightest Messier objects north of declination -19°. From Europe and North America they rise high above the horizon. Only images from a sky of Bortle class 8 or 9 count.10 objects
Messier from Bortle 7+Bortle 7+The 110 objects of Charles Messier's catalog, from a city sky. Only images from a sky of Bortle class 7, 8 or 9 count.110 objects
Messier from Bortle 8+Bortle 8+The 110 objects of Charles Messier's catalog, from a city sky. Only images from a sky of Bortle class 8 or 9 count.110 objects