NGC7635 - Bubble Nebula

Details
Category: Nebulae

(Full resolution)

 

Image awarded by Amateur Astronomy Picture of the Day (AAPOD²) (27th May 2015)

Exceptional seeing (~1" for 0,8"/px sampling) during the two acquisitions sessions :

Top : Stacked Halpha image, Bottom : Scaled Hubble image

Halpha raw image (200%) :

 

 Halpha and OIII channels :

 

Acquisition details :

  • Optic : Newton Orion Optics CT10 (250/1200), TV Paracorr corrector
  • Camera : QSI 583wsg, LRVB Baader filters
  • Guiding : SX Lodestar, integrated off-axis guider
  • Exposure : Ha : 21x900" (5h15min) / OIII : 30x600" (5h)
  • Note : R:G:B = Ha:(0.2*Ha + 0.8*OIII):OIII
  • Processed with PixInsight