Clusters

The Globular Cluster NGC 6205 (M13)

 

Scope:Altair 250mm RC f/5.3
Camera:ZWO ASI 183MM Pro
Mount:iOptron CEM120EC
Filters:None
Exposure:30 x 120sec subs, Flat fielded and dark subtracted
Processing: There was no background gradient at all, so all that been done on this is to reduce the background noise using Russell Cromans excent Noise Exterminator plug-in for PI and into Affinity to back off the core a little.
Other Comments
Date Taken: 04-06/2023

The Double Cluster NGC 869/884

 

Scope:TMB 80mm APO Refractor at f/6
Camera:SBIG 2000 XM
Mount:Losmandy G11 – Gemini Series III GoTo
Filters:SBIG CFW8
Exposure:LRGB Luminance 5x5min Bin 1×1 Red 2x5min Green 2x5min Blue 2x5min Bin 2×2 . 10c dark subtracted, No Flat
Processing: Acquisition CCDSoft v5, Photoshop CS2 curves, colour balance, 2 pixel star size reduction, gentle unsharp mask
Other Comments
Date Taken: 16-08-2005

The Globular Cluster NGC 6205 (M13)

 

Scope:Meade LX90 f/6.3
Camera:SBIG 2000 XM
Mount:Losmandy G11 – Gemini Series III GoTo
Filters:SBIG CFW8
Exposure:LRGB. Luminance 3x5min, R and G 3×5 min, B 2x5min @ -20 centigrade, All Binned 2×2 less Dark Frame. No Flat
Processing: CCDsoft align. Photoshop Curves and Levels, R/L Sharpen
Other CommentsThis is my first attempt at colour imaging with the new camera. Focus wasn’t spot on and the seeing was average, so the sharpening used is probably a little on the heavy side.
Date Taken: 16-11-2003

The Globular Cluster NGC 6205 (M13)

 

Scope:Meade LX90 f/6.3
Camera:SBIG 2000 XM
Mount:Losmandy G11 – Gemini Series III GoTo
Filters:None
Exposure:Luminance 3x5min@ -20 centigrade, Binned 2×2 less Dark Frame. No Flat
Processing: CCDsoft align. Photoshop Curves and Levels, R/L Sharpen
Other CommentsMy first serious imaging attempt with the new SBIG camera. A pity it wasn’t framed better though.
Date Taken:04-09-2003