M 31

M 31 – Andromeda Galaxy


Date/time:
25.07.2009 02:36 to 25.07.2009 04:10
26.07.2009 02:40 to 26.07.2009 04:25
Az./Alt. positions:  
77° / 54° to 90° / 71°
78° / 55° to 93° / 74°
Ambient conditions: 22°C to 25°C, transparency 5/5, seeing 5/5
Location: Monte Amiata, Agriturismo Poggiobello, Italy

Equipment:
Optics: TMB 92 SS f/5.5 with TSFlat 2
Mount: CGE
Guiding: selfguiding with ST-4000XCM
Camera: SBIG ST-4000XCM
Filters: No

Acquisition:
Software: CCDSoft V5
FOV, Image scale: 100.9 x 100.9 arcmin, 3,01 arcs/pixel
Sub-exposures: 3h 10min (9 x 10min at –10°C + 10 x 10min at –15°C),
50 x 10min dark frames at –10°C and –15°C,
30 x 0.02s EL flats at –10°C
50 bias at –10°C for flats calibration

Processing:
Images Plus 3.75: Calibration, stacking, Deconvolution.
CS3: Curves, Levels, Match Color, noise reductuin in Carbonis’ Actions, Smart sharpen.

Comments:

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Filename: galaxies/m31_2009-07-25_full.jpg
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