Caldwell 49 / Rosette Nebula in Hubble Palette Narrowband


Simon Todd

Cork, Ireland

Imaging Scope: Celestron C80ED APO Refractor
Imaging Camera: ATIK 383L+ Mono CCD Cooled to -25C
Guide Camera: QHY5 and now QHY5L-II
Off Axis Guider: TS 9mm OAG
Mount: Skywatcher NEQ6Pro (Steel Pier Mounted)

Object: Rosette Nebula
Location: Moneceros

Image Details:
7nm HA Data: 16x600S
7nm OIII Data: 16x600S
7nm SII Data: 16x600S
Darks: 23 Frames
Flats: 23 Frames

Image Acquisition Software: Sequence Generator Pro
Dark/Flat/BIAS frame subtraction and Stacking: Nebulosity 3
Post Processing: Adobe Photoshop CS5, Noise Ninja

I went through the same technique of adding a HA layer as Luminosity after finalising the colours