NGC 1055 - M77's Neighbor Galaxy in Cetus
NGC 1055 - M77's Neighbor Galaxy in Cetus
NGC 1055 - M77's Neighbor Galaxy in Cetus
NGC 1055 is an edge on spiral galaxy located only half a degree from M77. The two galaxies are the dominant galaxies in the small "M77" group of galaxies. NGC 1055 emits a large amount of radiation in the infrared and radio portions of the spectrum. Astronomers theorize that this is indicative of a high volume of star formation in the galaxy.

In this image, North is to the right. This image is cropped to 61% of the original full frame.

Exposure Details
Lens Celestron C-8 SCT with Celestron focal reducer
Focal Length 1160mm (measured from the image)
Focal Ratio f/5.8
Mount Schaefer GEM - 7 1/2 Byers gear
Guiding ONAG On-Axis Guider, Lodestar autoguider, PHD Guiding
Camera Canon 450D - Gary Honis modified
Exposure 192 subexposures of 180 seconds each at ISO 1600 - a little over 9 1/2 hours total
Calibration 30 darks, 30 flats, 30 bias
Date September 18, 2012 and October 15 and 16, 2012
Temperature 59F on 9/18, 56F on 10/15, 59F on 10/16
SQM Reading 21.3 (Bortle 4) on 9/18, 21.1 (Bortle 4) on 10/15 and 10/16
Seeing 3/5 on 9/18, 4/5 on 10/15, 3/5 on 10/16
Location Pine Mountain Club, California
Software Used Images Plus 4.5 for camera control, calibration, stacking, digital development, multiresolution sharpening, smoothing and noise reduction. Photoshop CS5 used for levels and curves, color correction, selective color, high pass filter, star shrinking, lab color, saturation adjustments, screen mask invert, lens correction, HDR toning and smart sharpen. Gradient Xterminator for gradient removal. Carboni Tools for additional saturation adjustments, noise reduction, and smoothing. HLVG for additional color correction. Registar for alignment of stacks.
Notes This galaxy is much more subtle than its neighbor, M77. As a result, processing this image proved to be tricky, but I'm happy with thefinal image.

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M77 and NGC 1055 - Galactic Neighbors