All Images Copyright Rod Gallagher
Click on image to see full size
M23 -- Open Cluster
Object
Type
|
Open Cluster
|
Constellation
|
Sagittarius
|
Distance
|
2,050 light years
|
Magnitude
|
5.5
|
Size
|
35 arc-min
|
|
|
Image
Date
|
2011-07-03
|
Place
|
Cheddar Ranch Observatory
|
Exposure Data
|
CRGB 60:45:45:45 mins @ -5 C
|
|
Clear 12x5, R 9x5, G 9x5, B 9x5 min
|
Notes
|
RGB Binned 2x2
|
|
|
|
|
Equipment
Optics
|
Takahashi FSQ-106N
|
Focal Length
|
530 mm @f/5.0
|
Mount
|
Takahashi NJP
|
Camera
|
SBIG ST-10XME
|
Focuser
|
Robo-Focus
|
Filters
|
CFW-10, AstroDon LRGB
|
Software
|
TheSky6, CCDSoft, CCDAutopilot 4, CCDStack2+, PixInsight, PhotoShop CS6
|
|
Reprocessed on 06/16/2023
|
|