IC 1613
Dwarf Irregular Galaxy in Cetus

RA: 01h 04m 36.0s Dec: +02 07' 00 Mag: 10 , Size: 16x14 Arc seconds (12,000 ly), Distance: 2.35 Mly

Click image for a larger view

   IC 1613 (Caldwell 51) is a dwarf irregular galaxy located in the constellation Cetus and was discovered by Max Wolf in 1906. This galaxy is a member of the Local Group of galaxies and has a morphological classification of IBm (Irregular Barred - Magellanic type). Irregular galaxies are those that don't fit into the Hubble sequence of galaxy classification and often have chaotic structure, lack spiral arms and no nuclear bulge. It's believed that these galaxies are shaped so because of gravitational influences from passing galaxies or larger neighboring ones.
IC1613 has a very low surface brightness and so little dust that background galaxies can been seen behind it in this image. The center has a visible bar like structure and overall has several star forming regions as evident by the red HIII regions surrounding hot blue O/B stars. Star ages range from 20 million to 10 billion years old.

Location & Date Backyard, Abbott Observatory - October & November, 2010
Temperature - Mid 30's F
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Telescope Deep Sky Instruments RC10C , F/7.3, Losmandy G11 Gemini, Prime Focus, Image scale 0.82 arcsec/pixel
Camera SBIG ST-2000XM w/CFW8, AO8
Baader HaLRGB AR Filters
CCD temp -15C
Exposure Times (Ha) 12x15m (Lum) 36x10m (R)16x15m (G) 12x15m (B) 12x15m Bin 1x1
Other Information Image planning - CCD Navigator
Image acquisition/focus/guiding/dither - CCD Autopilot4 w/CCDSoft/TheSky6/PinPoint
Image Processing * CCDStack- Calibration, Normalize, Alignment, Mean Combine, Deconvolution
* FITS Liberator 3 - stretching
* Adobe CS4 - L+Ha+R,GB combine, Levels, Curves, Sharpening, NR, JPEG conversion

© 2011 Michael A. Siniscalchi