SH 2-275 / Rosette Nebula

SH 2-275 / Rosette Nebula

 

The Rosette Nebula, also known as Caldwell 49, is a large HII region located some 4700 light-years from the solar system. It was discovered by the American astronomer Lewis Swift in 1865.

 

The mass of the Rosette Nebula is estimated to be about 10 000 times the mass of the Sun

 

Spec :

 

William Optics Zenithstar61 II

Flat61

HEQ5 Pro

Optolong L extreme 2"

Canon T3I astro modded

 

35 x 120 secondes (1h10 integration)

15 darks

8 flats

20 offsets

 

13 x 180 secondes (40 minutes integration)

15 darks

9 flats

20 offsets

 

Total integration 1h50

 

Iso800

 

Sky Bortel 9

Montréal, Qc, CA

 

APP / Photoshop / Topaz denoise

Done