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M 08

M 08 – Lagoon Nebula

Date/time: 25.07.2009 23:40 to 26.07.2009 02:15
Az./Alt. positions: 187° / 21° to 221° / 9.5°
Ambient conditions: 22°C, transparency 5/5, seeing 5/5,
Location: Monte Amiata, Agriturismo Poggiobello, Italy

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

Software: CCDSoft V5
FOV, Image scale: 100.9 x 100.9 arcmin, 3,01 arcs/pixel
Sub-exposures: 2h (12 x 10min) lights at –15°C,
50 x 10min dark frames,
30 x 0.02s EL flats at –10°C
50 bias at –10°C for flats calibration

Steps in Images Plus 3.75: Calibration, ExcAvg combine, DDP, neutralize background, background/highlight smoothing, brightness Levels, Adaptive Richardson-Lucy deconvolution, Gaussian noise reduction. Residual gradient eliminated with GradientXterminator in CS3.

Excellent dark site near Monte Amiata (South Tuscany, Italy) at 900m above see level. No LPS filters were necessary and imaging was possible up to very low altitutes. Some more exposure time would bring more faint details of the nebula.

Download full size image:

Filename: nebulae/m08_2009-07-25_full.jpg
Filesize: 3496666 Kb
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