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NGC 1097 in Fornax



Scope: C8  f/8.0, Location: Blair Valley, Anza Borrego Desert, 15 December 2007  Camera: Artemis285

Exposure: 10 x 8 minutes Luminance exposures with IR block (1x1 bin), 6 x 3 minutes RGB exposures (2x2 bin).

Processing: Images were captured Artemis Capture (as FITs). Aligned/stacked and dark subtracted in Astroart with Sigma Combine. Luminance and Color channels were scaled and rough color balanced in Astroart.  Central gradient removal performed in Astroart. Channels were co-registered in Astroart. The 8 minute IR block exposures were used for the main luminance construction with level adjustments and curves to bring out object features. LRGB combine was done in Photoshop in LAB color space. G2V and Atmospheric Extinction factors applied to the color balance. Selective sharpening (with mask) was used to enhance galaxy features. A light noise reduction was applied with PixInsight LE SGBNR.  Final touches were done in Photoshop.  Final Image size is approximately 1392x1040.

North is up in this image.  NGC 1097 is a barred spiral galaxy in the constellation of Fornax. It is considered to have a highly active nucleus. In addition, some deep images of NGC1097 reveal up to four jets streaming from the nucleus. The smaller galaxy above NGC 1097 is known as NGC 1097A. NGC 1097's distance from Earth is not well known. Some estimate put it at 45 million light years.  This image replaces an earlier image that can be seen in the Archives here.  Horizontal FOV is 20'

Image center is approximately - Equatorial 2000: RA: 02h 46m 10s Dec: -3013'42"


All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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