M 33 – Pinwheel Galaxy Date/time: 27.07.2009 02:40 to 27.07.2009 04:15 28.07.2009 01:35 to 28.07.2009 02:38 Az./Alt. positions: 86° / 43° to 104° / 59° 76° / 32° to 85° / 42° Ambient conditions: 22°C to 25°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: 2h 10min (8 x 10min at –15°C + 5 x 10min at –10°C), 50 x 10min dark frames at –10°C and –15°C, 30 x 0.05s EL flats at –5°C 50 bias at –5°C for flats calibration Processing: Images Plus 3.75: Calibration, stacking, DDP, backgroung highlight smoothing. CS3: Curves, Match color, GradientXterminator, selective High Pass on galaxy core and arms. Pixinsight LE 1.0: green cast elimination. Comments: Excellent dark site near Monte Amiata (South Tuscany, Italy) at 900m height. Good result, considering the relatively short total exposure time. Download full size image:Information Filename: galaxies/m33_2009-07-27_full.jpg Filesize: 2334858 Kb Download limit: unlimited
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