Focal Pointe Observatory
Astrophotography by Bob Franke

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NGC 5033


       Click the full screen zoom button           ^
     
Click the image to Zoom and Pan              

Click here to view the image without Zoomify (2700 x 1800 - 540 KB)

 

 

Instrument

12.5" RCOS @  ~f/9 (2897 mm fl) 0.641 arcsec / pixel.  The Zoomify image scale is 0.85 to 3.07 arcsec / pixel.

Mount

Paramount ME

Camera

SBIG STL-11000 w/ internal filter wheel, AstroDon Gen II Filters

Acquisition Data

2/9/2011 to 3/29/2011 Chino Valley, AZ... with CCDAutoPilot3 & CCDSoft.  AOL guided

Exposure

Lum 420 min (28 x 15 min, bin 1x1...  best 28 of 56)

Ha   840 min (28 x 30 min, bin 1x1)

RGB 585 min (13 x 15 min each, bin 2x2)

Software

CCDSoft, CCDStack, Photoshop CS w/ the Fits Liberator plugin, Noel Carboni's actions and Russell Croman's GradientXTerminator.

eXcalibrator 2.0-Beta for (u-g), (g-r) color calibration, using 7 stars from the SDSS-DR7 database.

PixFix32 (pre-beta) to repair column defects.

CCDStack to calibrate, register, normalize, data reject,  combining the sub exposures and LRGB combine.

PhotoShop for non-linear stretching, LLRGB combine and adding the Ha data to the red channel, with the lighten setting for opacity.

Noiseware Pro, a PhotoShop plug-in.

Comment

North is to the right.

NGC 5033 is located in the constellation Canes Venatici, at a distance of about 49 million light years. This image shows several of the pink HII star forming areas. The NED database identifies 423 HII regions in NGC 5033.