NGC925
Face
on Spiral Galaxy in Triangulum
Uploaded
11/17/12
Overshadowed
by its brighter and more famous neighbor M33, this smaller but
more structured spiral in Triangulum should not be overlooked
on your next observing session. Listed at magnitude 10.7 and
10 arc minutes in size, this SAB spiral is low surface brightness,
but boasts a few nice pink HII regions in this image for inspection.
The yellow barred core extends out to a pair of blue arms, studded
with bright knots from OB associations. Many other faint galaxies
can also be found in this field on the larger image. |
Instrument: 12.5" f/5 Home made Newtonian
Mount: Astrophysics 1200 QMD
CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling
Guider: Meade DSI Pro w/Lumicon Newt Easy Guider
Exposure: LRGB = 60:20:20:20
AstroDon RGB Combine Ratio: 1: 1.05: 1.2
Location: Payson, Arizona, Elevation: 5150 ft.
Sky: Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature: 35 F
CCD Temperature: -20 C
Image Processing Tools:
Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking
PixInsight: Curves, Deconvolution
Photoshop CS2: Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup
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