|
03/06/2011 at Sommières-du-Clain, Vienne (86) Telescope: Orion 80ED refractor at F=600mm Guiding: None Mount: Celestron CG5 Imager: Atik 314L+ at -13,5°C Moon: no moon Conditions: calm, few fog at the horizon, 15°C, dry air Exposures: L:56x60s in binning 1x1 RGB:3x8x60s binning 2x2 Offsets: 23x1/4000s in binning 1x1 and 23x1/4000s in binning 2x2 Darks: 5x60s in binning 1x1 and 5x60s in binning 2x2 Flats: L:33x0,001s RGB:3x13x0,001s Processing: pre-processing IRIS : offset, dark, flat then addition and registration on each layer. Resizing RGB layers for combining LRGB in binning1x1. GIMP : curves, levels. Commentary: difficult processing. Next time I'll do RGB layers in binning 1x1, so that I won't have to redo darks, flats and offsets in binning 2x2.
M109 23/05/2010 Suresnes C8 F=1260mm + Anti-pollution filter Atik 314L+ binning 1x1 pour la couche L:9x120s, binning 2x2 pour RGB:3x5x60s 4 Dark, 30 offset, no flat. processing with IRIS + GIMP. The result is not good. Doing different binning for RGB filters was not a good idea, I had to reduce the resolution of L layer to add it with RGB layers. I think that this object has a too low magnitude for Paris region site. I tried long exposures, without guiding. The goal was to see if this type of object was possible to do in this site. Answer: no. I did M51 better. 
|
