NGC 7635 – The Bubble Nebula

Date/time:
28.07.2009 22:40 to 29.07.2009 01:10
Az./Alt. positions:  
39° / 40° to 41° / 58°
Ambient conditions: 22°C, transparency 5/5, seeing 5/5
Location: Monte Amiata, Agriturismo Poggiobello, Italy

Equipment:
Optics: TMB 130 SS f/7 with TSFlat 2
Mount: CGE
Guiding: selfguiding with ST-4000XCM
Camera: SBIG ST-4000XCM
Filter: No

Acquisition:
Software: CCDSoft V5
FOV, Image scale: 57.2 x 57.2 arcmin, 1.68 arcs/pixel
Sub-exposures: 1h 40min (10 x 15min) lights  at –15°C,
50 x 10min dark frames,
30 x 0.05s EL flats at –10°C
50 bias at –10°C for flats calibration

Processing:
Fully processed in CS3: Curves and levels adjustments, Match color,
noise reduction with Carbonis Actions.

Comments:
More exposures necessary for a better SNR.