clic here for 50% size 1781 x 1320 (585 kB)
About this Image
Cederblad 214 and NGC 7822 (also named SH2-187) are a nice but different pair of emission nebulae.
Ced 214 shows a very turbulent structure with obscuring dust and glowing pillows blown away from the stellar wind.
NGC7822 more reminds of the North american or California nebula showing a "wall" in the center.
105mm TMB refractor with flattener at f/6.5
|Camera||SBIG STL-11000M at -25C, internal filter wheel|
|Filters||Astronomik H-alpha (15 nm) + RGB|
|Date||Sep 18, 2004.|
|Sky Conditions||mag 5.5, good transparency, temperature 12 C,|
Ha = 180 min (10-minute sub-exposures),
RGB= 30:30:30 min (10-minute sub-exposures)
all 1x1 bin.
Image aquisition in Maxim DL 4.0; Image calibration, aligning, mean stacking, DDP and color synthesis in ImagesPlus;
Photoshop: H-alpha blended to red and L channel; cropped, Noise reduction by Neatimage;