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NGC 2158 - Open Cluster In Gemini [Up Close]

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#1 mmalik

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Posted 08 December 2012 - 07:53 AM

NGC 2158 - Open Cluster In Gemini [Up Close]. Nov 20, 2012

NGC 2158 is very compressed, rich gathering of faint stars. Because of the crowding of its stars toward its center, it has the appearance of a loose globular. [SkySafari Pro]

•ISO 800 (1x2min, 5x3min, 1x5min)
•ISO 1600 (1x1min, 1x3min, 1x5min)
•31min integration, guided
•Guiding: SBIG ST-i mono/XPS13/130mm TMB APO
•Pointing/Navigation/Aligning: iPad/SkySafari Pro
•Imaging: Canon 60Da/IDAS LPS-P2/254mm TMB APO/elCapitan

Processing Workflow: (Instructions here...)
•RAW file conversion in ImagesPlus 5.0
•Align TSR/Combine/Crop in ImagesPlus 5.0
•Digital Development in ImagesPlus 5.0
•Multi Point Flatten Background-Planar in ImagesPlus 5.0
•Multiresolution Smooth-Sharpen + Inverse Luminance Mask in ImagesPlus 5.0
•Geometric Transform/Scale (Factor 0.5) in ImagesPlus 5.0
•Adaptive Richardson-Lucy Restoration + Luminance Mask in ImagesPlus 5.0
•Smoothing in ImagesPlus 5.0
•Saturation (Block), Contrast, 'Noise Reduction', and Sharpen in Photoshop Extended CS6
•Star Size and Halo Reduction in ImagesPlus 5.0
•Curves, Contrast, Saturation, and 'Noise Reduction' in Photoshop Extended CS6


•Combined/Unprocessed FITs (Full/Cropped) here...

•Cropped frame
•Larger cropped file...
•Full frame details here...

Attached Files



#2 jgraham

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Posted 08 December 2012 - 08:26 AM

Now that's neat. I don't think that I have ever seen a close-up of this cluster by itself. Very nice.

#3 Maverick199

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Posted 08 December 2012 - 09:23 AM

Excellent, very nice colors. The stars look soft or slightly blurry but could be the effect of crop.

#4 srosenfraz

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Posted 08 December 2012 - 02:39 PM

Very nice looking crop, Mike.

#5 mmalik

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Posted 08 December 2012 - 04:58 PM

The stars look soft or slightly blurry but could be the effect of crop.


Thanks John/Scott.

Haseeb, yes, bit of softness is coming from heavy cropping. Thx






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