| Date: 9 July 2003 | Telescope: 10 inch SCT | AVI: 1/25 sec for various seconds at 5 fps |
| Time: 01:06 - 01:52 (GMT + 2h00) | Camera: Logitec Quickcam Pro 4000 | Processing: 200 frames stacked |
| Observatory: Hartbeespoort | Magnification: 2x Meade Barlow | Software: K3CCDTools and Photoshop |
My 10 inch telescope can theoretically resolve 0.45 seconds of arch. Mars rotates 0.1" every 110 seconds. So I should be able to capture AVIs for up to 495 seconds long before I reach 0.45 seconds of arch - then in theory the rotation of Mars will blur the stacked image.
Based on this one test it seems that longer than 300 seconds are worthwhile and more detailed gets captured the longer I let the AVI capture frames.
More tests will be done since it seems 480 seconds is significantly better than 300 seconds ... for a 2x Barlow resulting in f/20 (for my 10 inch f/10 prime focus telescope).
The map of Mars shows Mars with the central meridian of 60 (AVI captured at 1:52).