Hi
Image 1:
It’s a bit ugly, but here is a 2 pane mosaic of Sunspot 921 from today, 6th November 2006. Images taken from Brisbane using a Vixen 4 inch refractor, Televue x5 Powermate, full aperture Baader solar filter and Philips ToUcam 840K. The seeing was quite awful and the little detail I was able to rescue is a testimony to Registax’s capabilities. I have estimated the apparent size of Mercury based on the following calculations:
FOV of a single pane is approx 3x3 arc mins = 180x180 arc secs.
Mercury = 10 arc secs in diameter.
Image 2:
The next image is with the same ‘scope and ToUcam, but using the x2.5 Powermate.
Image 3:
The final image was taken through a WO 80mm f7 ED Triplet with a Pentax *ist DS DSLR and a x2 photo teleconverter.
Images captured between 9:30am and 12 noon, in between cloud cover.
Cheers
Dennis
Today’s lessons:- Be prepared for clouds and poor seeing. So don’t forget to enjoy the paltry crumbs that may come your way, rather than regret what may have been.
- If you plan to be observing/imaging from 5:00am to 10:00am, PLEASE have some shelter nearby – a parasol, sun tent or something to give you respite from the heat.
- Have food, snacks and plenty of water.
- Relax and enjoy whatever comes your way.