Object name: Simeis 147, IC 405 and more   Optics:   Mamiya 200 / 2.8 medium format photo lens @ f/3.5
  Objekt type: Supernova remnant   Focal lenght:   200 mm
  Constellation: Cassiopeia   Camera:   FLI ML 16803-65
  Location / Date: Remseck / 07.Feb.2011   Exposure:   12 x 1200 sec H-alpha / 3 x 1200 sec OIII / 1 x 300 sec RGB
  Distance: approx. 3000 Ly   Filters:   Baader H-alpha filter 7 nm / OIII-filter 8.5 nm
  Apparent dimensions: approx. 3° diameter   Mount:   10micron GM2000
  Real dimensions: -   Autoguiding:   none
  Brightness: -   Software:   MaxIm DL / Registar / Photoshop CS3
  Position (R.A. / DEC): 05h 40' 52" / +27° 00' 20"   Image processing:   Tone-Mapping-Method
 
 


E
xplanation:

Simeis 147 (lower left - also known as Sharpless 2-240) is a supernova remnant n the contellation Taurus and Auriga.
Also some famous open clusters (M
36, M37, M38) and emission nebulas like IC 405 (flaming star nebula - upper right)
are visible in this image.