- In Search of Hydrogen
Association in M31
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling
Guider: SBIG ST4
Exposure: LRGB = 120:40:40:40
RGB Combine Ratio: 1: 1.05: 1.11
Filters: AstroDon RGB Tricolor
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 7.0 arcsec (Maxim DL - 10min subframe), Transparency 8/10
Outside Temperature: 35 F
CCD Temperature: -30 C
Processing Tools: Maxim DL, Gralaks Sigma, Photoshop, PixInsight, Starizona Debloomer.
HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS
GLOBULARS OPEN CLUST PLANETARIES LINKS
This image was taken to
determine if there were suitable HII regions near the stellar
association NGC206 in the Andromeda Galaxy for further hydrogen
alpha exposures. Indeed, I was not only surprised at the number
of small and structured regions, but also that many of them are
intimately associated with the hot blue OB stars, often forming
arcs and sheets in their immediate vicinity.
The colors seen
in this transitional region of the arms are interesting. While
the sunshine yellow core is way off to the lower right off the
frame, we are moving into a very obscured portion of the disk,
riddled with dust and transitioning into blue arms to the upper
left. Thus the browns and ruddy disk leads into strikingly sky
blue colored OB stars.