Weather conditions were again very good yesterday evening. Humidity was below 90% and temperature around -6°C. Objective this evening was to experiment with longer exposures for the ASI224MC. I started with M42, the Orion Nebula and a exposure of 20s. In total 50 pictures are taken and stacked using Registax and edited using CS4. In comparison with earlier M42 pictures much more details show up with more "red" color.
