EDC 214

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Date
2013/09/03

Observation place
French alps

Technical

TelescopeAstroSysteme Austria Orion 305mm – 12″, 1086mm FL, f/3,62
MountASA Direct drive Mount DDM85
Imaging cameraMicroLine 8300 (Finger Lakes Instruments) – regulated at -30o Celsius
Image typeHa (RGB)
ExhibitionHa (11 x 5 'bin 2 × 2), R, G and B (4 x 2' bin 3 × 3 each)
PretreatmentMaxim DL
TreatmentPhotoshop and PixInsight

Object description

Object typeEmission nebula
ConstellationCepheus
Visual magnitude+10
Distance6000 light years
Diameter40 light years
Dimension seen from Earth50 x 40 arc minutes
 The Cederblad 214 (Ced 214) emission nebula is very difficult to see in a telescope. To see it visually, you need a telescope with a large diameter and a sky without light pollution.

For this photo, the use of a Hydrogen-Alpha filter as a luminance image made it possible to bring out the very beautiful shades and contrasts of the nebula in this light spectrum. Also, the choice of a site without light pollution and a telescope with a focal length f / 3,62 (very open) and a diameter of 305 mm (12 inches) helped to resolve this image.  

Also called Sharpless 171, Cederblad 214 is a young emission nebula with a diameter of about 40 light-years. Its visibility is fueled by the glow of hot young stars. It is also home to a small star cluster called Berkeley 59 that can be seen at the top right of the image. It probably represents a second generation of young stars whose formation was created by this vast cloud of expanding gas. Ced 214 is about 6000 light years from earth.    
Richard Beauregard
Sky Astro - CCD
My impression "We cannot be alone in this gigantic universe"