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M 13 – Great Hercules Globular Cluster Date/time: 24.05.2009 11:55 to 25.05.2009 02:00 26.05.2009 00:25 to 26.05.2009 01:45
Ambient conditions: 10°C, transparency 5/5, seeing 4/5, on first night high clouds. Location: Trier, Germany Equipment: Telescope: TMB 130 SS f/7 with TSFlat 2” Mount: CGE Guiding: selfguiding with ST-4000XCM Camera: SBIG ST-4000XCM Filters: IDAS LPS Acquisition: Software: CCDSoft V5 FOV, Image scale: 57.2 x 57.2 arcmin, 1.68 arcs/pixel Sub-exposures: 3h 45min (15 x 15min) lights at –15°C, 40 x 15min darks, 55 x 1s flats calibrated with 50 bias @-15°C Processing: Entirely processed in Images Plus 3.8 Beta 2: Calibration and Stacking (Median combine) of 12 frames, DDP (Background weight 0.65), Background/Highlight Smoothing with Max Luminance set on the area of most noise, Saturation and Brightness level adjustments. Comments: A minimum of processing steps were done. No color adjustments done, since the processing was carried out in a non-calibrated laptop monitor. Download full size image:Information Filename: clusters/m13_2009-05-25_full.jpg Filesize: 2301580 Kb Download limit: unlimited
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