I got a nice detailed explanation from the author of Astro Snap to help me to get autoguiding working. This Yahoo group has many discussions and tips on using Astro Snap - I recommend it.
I balanced my telescope very well tonight. Unfortunately there is such a thing as a too well balanced telescope. The balanced telescope caused the telescope to ocillate and the image to vibrate slightly. I only learned about the cause of this strange new vibration this morning so I will implement the fix tomorrow - forcing the telescopes' motors to lift up a slightly front-end heavy tube (OTA).
Here are some excellent tips about the Elimination of Vibrations that I am going to test tonight as well.
I changed my telescope's backlash setting and it works great - slewing in declination is now as instantaneous as slewing in R.A.
Here are some tips for people new to Astro Snap
I left my telescope in sleep mode during the night - with the telescope pointing at the horizon. I started to take pictures at 5:00 in the morning. When I tucked the telescope in for its sleep during the day, I noticed its corrector lens was covered with a LAYER of dust. I did not expect this since I specifically left the telescope horizontal. Guess I was wrong - next time I will cover up the corrector lens as well.
This dust might be the cause of the sub-standard images I have on this webpage today. I discovered it only after I captured all the bitmap frames.





This information is for the picture of Mars on the right.
| Date: 28 July 2003 | Telescope: 10 inch SCT | Bitmaps captured at streaming speed in Astro-Snap: - around 4 fps |
| Time: 4:35 UT | Camera: Logitech Quickcam Pro 4000 | Processing: 100 frames stacked out of 1200 (300 seconds) |
| Observatory: Hartbeespoort | Magnification: 3x Tele Vue Barlow | Software: Astro Snap, K3 CCD Tools and Photoshop |
| Mars Apparent Diameter: 22.0 " | Illuminated Fraction: 0.956 | Distance from Earth: 0.4250 ua | Central meridian: 292.44 |