7000 light-years distant in the constellation of Cassiopeia lies the emission nebula colloquially known as the Soul Nebula. The gasses (mostly hydrogen) that comprise the nebula are being ionized by the stars within the region and as a result, the gasses glow, much like a neon sign.
The pressures exerted upon the material by the stars nearby are causing the material to become compressed. When enough of the gas becomes highly compacted, it triggers the birth of new stars. In effect, this is a beautiful snapshot of a multimillion-year process of an enormous cloud of dust and gas transforming itself into new stars.
written by
Adam StirekCaptured over 5 nights, this is a Hubble Palette (HST) version with SII filter assigned to Red, H-Alpha filter assigned to Green and OIII filter assigned to blue channel, you may notice in the H-Alpha version I used 10 x 30 min H-Alpha sub exposures as opposed to this version I used substantially more.
Total Exposure time 20 hours
Date of Shoot September 12th, 13th, 15th, 16th and 17th 2012
All exposures unbinned
H-Alpha 3nm 16 x 30 min
OIII 8.5 nm 12 x 30 min
SII 8 nm 12 x 30 min
QHY9M monochrome CCD cooled to -30C
www.astrofactors.comThomas M. Back TMB 92SS F5.5 APO Refractor
Paramount GT-1100S German Equatorial Mount (with MKS 4000)
Image Aquisition Maxim DL
Stacking and Calibrating: CCDStack
Registration of images in Registar
Post Processing Photoshop CS5
Star Spikes Pro II
purchase a printfollow me on FacebooktwitterDown Under ObservatoryYouTube
Comments