Hello,
Earlier in the morning, the seeing was at times remarkably steady. For periods of say ½ second, it was easy to visually resolve the intricate detail in the sunspot penumbra and see the faculae “boiling” over regions of the image displayed on the notebook computer.
I had to increase the exposure by a factor of x2 to compensate for the smokey/hazy atmosphere in Brisbane and I also noticed a drop off in contrast compared to yesterday.
I had a go at colourising the B&W version based on a tone sampled from the Spaceweather solar image.
Details:- AR1289
- 18th Sept 2011, 9:24 am AEST (UT+10)
- Brisbane, Qld, Australia
- Tak Mewlon 180 F12 with Tak x1.6 Extender
- DMK31AF05.AS CCD camera
- 244 frames from 2000 processed in AVIStack V1.8
Cheers
Dennis