Location : Castres (France, Tarn)
Acquisition Date : 2010-02-01 beginning at 20:23:00 UT
Author : Michel Fleureau
Scope : Newton Orion 200/1000 (f/5)
Autoguiding : Orion StarShoot autoguider (PHD Guiding) & Orion ShortTube 80/400 mm
Camera : Canon EOS 450D (Digital Rebel XSi) non défiltré (unmodded)
Exposure : 80.0 minutes [16 subexposures of 300 sec each (selected from 20)] @ ISO 400
Calibration : Dark & bias : 9/9 @ ISO 400 - Flat & Dark-Flat : 9 @ ISO 400
Weather : Temp -5°- Hum 50% - Vent nul - Turbulence faible - Bonne transparence
Software Used : ImagePlus, PhotoShop CS