Hydrogen-Alpha Test Images
(Narrow band H-Alpha at 656nm. The 'Astronomik' filter has a 13nm bandwidth)
M8
Exposure Details
Date: 18th October, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: 50 minutes imaged through Ha filter (10 minute sub exposures)
M20
Exposure Details
Date: 18th October, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: 30 minutes imaged through Ha filter (10 minute sub exposures)
M16
Exposure Details
Date: 21st October, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: 80 minutes imaged through Ha filter (10 minute sub exposures)
M17
Exposure Details
Date: 21st October, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: Single 10 minute exposure through Ha filter under extremely poor seeing.
Horsehead Nebula
Exposure Details
Date: 3rd December, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: 20 minutes (2x10 minute sub exposures)
Tarantula Nebula
Exposure Details
Date: 3rd December, 2004
Telescope + Camera: 0.254-m SCT + ST-2000XM at F/6.3 Bin 2x2
Resolution: Approximately 2 arc seconds per pixel
Exposure: 20 minutes (2x10 minute sub exposures)