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Old 11-03-2017, 07:25 PM
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Bassnut (Fred)
Narrowfield rules!

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Join Date: Nov 2006
Location: Torquay
Posts: 5,065
NGC1850 and NGC1858 Nebulae in NB

Hi Guys

A slightly unusual one that was difficult to colour map. The exposure hrs dont mean much as OIII and SII were very faint and didnt contribute much.

RGB added for stars.

Large here.

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. 64 hrs Total exposure time.
Ha, Ha, SII, OIII. Mapped as LRYellowB.

Ha 28hrs, 40min subs bin1. SII 21hrs. OIII 23hrs 40min subs bin2
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Click for full-size image (NGC1850 Ha OIII SII final sml.jpg)
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