BEHIND THE IMAGE
Notes from the session
It is so distinctive from the other globular clusters that it is thought to have an alternate origin as the core remnant of a disrupted dwarf galaxy.
Image:
54x 60s Red bin2x2 + 10 flat + 50x dark + 120x bias
23x 60s Green bin2x2 + 10 flat + 50x dark + 120x bias
49x 60s Blue bin2x2 + 10 flat + 50x dark + 120x bias
Total exposure 2 hours 6 minutes.
Hardware:
Skywatcher Black Diamond 80ED
SkyWatcher EQ8 Pro Mount
QSI 683-ws Camera @ -15°C
Astronomik typ 2c RGB filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight On Axis Guider
Starlight Instruments Focus Boss II
Location:
Orange zone in Brisbane, Australia. (Bortle 7)
Software:
Planning & camera alignment with Aladin 9
Captured with AstroArt 6
Guiding with PHD2 + PHD_Dither
Live focusing with FocusLock
CCDInspector: Image analysis & rejection
CCDStack 2+: Calibrate, align, stack, combine RGB.
Photoshop CC: Curves, high pass filter, color balance, saturation.
Image:
54x 60s Red bin2x2 + 10 flat + 50x dark + 120x bias
23x 60s Green bin2x2 + 10 flat + 50x dark + 120x bias
49x 60s Blue bin2x2 + 10 flat + 50x dark + 120x bias
Total exposure 2 hours 6 minutes.
Hardware:
Skywatcher Black Diamond 80ED
SkyWatcher EQ8 Pro Mount
QSI 683-ws Camera @ -15°C
Astronomik typ 2c RGB filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight On Axis Guider
Starlight Instruments Focus Boss II
Location:
Orange zone in Brisbane, Australia. (Bortle 7)
Software:
Planning & camera alignment with Aladin 9
Captured with AstroArt 6
Guiding with PHD2 + PHD_Dither
Live focusing with FocusLock
CCDInspector: Image analysis & rejection
CCDStack 2+: Calibrate, align, stack, combine RGB.
Photoshop CC: Curves, high pass filter, color balance, saturation.