NGC 5130 Omega Centauri with Vixen R200SS
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| Date | : | 31 Dec 06 |
| Optical system | : | Vixen R200SS + MPCC + unmodd Canon EOS 350D body |
| Effective F.L. & F ratio | : | 800 mm @ F4 |
| Mount | : | Vixen old version ATLUX non-goto equatorial mount |
| Camera setting | : | Jpeg format @ iso800 w/ NR off |
| Total exposure | : | 7 x 60s |
| Guiding | : | Unguided |
| Stacking & processing | : | Stacking in Registax 3.0, Level & Curve stretching in Photoshop 7.0. |
| Sky & Air conditions | : | T = 6/10 @ temp ~ 10 oC, R.H. = 100% |
| Place of photographing | : | PTC coach carpark in Sai Kung, Hong Kong |
Comments after test :
Max. altitude of this object at HK's latitude of ~22.5 degrees north is only about 25 degrees above southern horizon. So, conditions are not so favour to HK astronomy amateur for shooting this beautiful globular cluster.
When I started shooting this cluster, the sky was becoming brighter and brighter. So, overall quality was below standard. But at least, I can see the resolution power and the fine definition of star images provided by this 8" fast scope.
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© All images are copyright William L.T. Ng.