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Old 02-10-2021, 04:36 PM
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Bassnut (Fred)
Narrowfield rules!

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Join Date: Nov 2006
Location: Torquay
Posts: 5,064
RCW89 Nebula in the Constellation of Circinus in NB

Hi Guys

Not oft imaged and quite dim, so over 100 hrs total exposure time.
3 nm Narrowband filters Ha and OIII (1hr subs for both) and RGB stars
There was quite a bit of SII too, but was difficult to process so was left out.
Large version here

Taken on my RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools and Photoshop.

Cheers
Fred
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