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Old 10-08-2014, 06:30 PM
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Bassnut (Fred)
Narrowfield rules!

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Join Date: Nov 2006
Location: Torquay
Posts: 5,065
IC4628 Prawn nebula in NB 42hrs

Hi Guys

IC4628 Prawn Nebula , click here for big.

Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools and Photoshop. 42 hrs Total exposure time.
Ha, SII,Ha,OIII. Mapped as LRGB

Ha 17hrs, 40min subs bin1. SII 13hrs 40min subs bin2, OIII 12hrs 40min subs bin2

I inserted RGB stars thinking that might be a good idea, but their wasnt a lot of colour in them. Suspect they were saturated at capture but the ADUs wernt that high, so I dont know what happened there.
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Click for full-size image (IC4628 Ha SII Ha OIII final sml.jpg)
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