Exposure Data

• Instrument: 4.9" f/3.8 Wright-Newtonian
• F/stop: 3.8
• Exposure: 16 x 1 minute
• Camera: Canon 350D with Baader UV-IR-Cut-Filter
• Sensitivity: ISO 800
• Exposure start: 19:41 MESZ
• Date: October 6, 2006
• Location: Niederleis, Lower Austria
• Conditions: Visual limiting magnitude 3.0 mag, seeing 2-4/10, temperature 14°C, no wind, no dew
• Autoguider: none
• Enhancement: Basic data reduction, combine, background flattening, logarithmic curves, color correction, noise filtering, crop
• Notes: Light of the full moon, evening twilight and haze near the horizon brightened the sky background. No autoguider was used. 52 exposures were taken, but only 18 of those showed no trailing.