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M 33

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:

Filename: galaxies/m33_2009-07-27_full.jpg
Filesize: 2334858 Kb
Download limit: unlimited
 

 

 

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