Exposure Data

• Instrument: 4.9" f/3.8 Wright-Newtonian
• F/stop: 3.8
• Exposure: 10 + 2 minutes
• Camera: Modified Nikon D70 Digital SLR
• Sensitivity: ISO 1600
• Exposure start: 2:04 MEZ
• Date: January 18, 2005
• Location: Ebenwaldhöhe, Lower Austria
• Conditions: Visual limiting magnitude 6.2 mag, seeing 1-2, temperature 0°C, no wind, low humidity
• Autoguider: Meade Pictor 216 XT, max. error: 1
• Enhancement: Adobe Photoshop CS 8.0, SGBNR 1.0.4
• Notes: The short exposure was used to substitute the saturated comet's core of the long shot. Autoguiding on the comet's core worked well. Field size 2°53' x 1°48'; north is up, east to the left. See also the GIF animation of the comet's movement during that night (2.4 MB).