The whole Sun. I am not pleased with this picture. The processing is a bit too aggresive, but there was high cloud at the time and the original picture is weak and less-agressive processing made the spots look very pale.
Date and Time: 17 April 2011 10:25 UT
Camera: DMK 21AF04
Telescope: 270 mm SLR
Capture: ICCapture. Exposure 1/308", gain 250, 3421 frames
Processing: Registax6. 4 alignment points, 494 frames stacked. Gaussian wavelets 1(0.1,0.07)=100, 2(0.15,0.1)=100, 3(0.44,0.1)=100 Linked.
A close-up picture of spot number 11190. This group first appeared on the 12th of April.
Date and Time: 17 April 2011 10:38 UT
Camera: DMK 21AF04
Telescope: LX200
Capture: ICCapture. Exposure 1/367", gain 180,
3391 frames
Processing: Registax6. 118 frames stacked. Gaussian wavelets as above
A close-up picture of spot number 11191. This is the spot in the lower-right of this picture and first appeared around the limb on the 13th of April. I am not clear about the identity of the small spot towards the upper-left. It does not appear to be associated with spot 11191 or group 11193 (below), and is not 11192 which appeared much further east and was disappearing around the limb by the time I took this picture. It seems to be too small to show on the SOHO pictures. Maybe it is a new one and will appear in later pictures.
Date and Time: 17 April 2011 10:38 UT
Camera: DMK 21AF04
Telescope: LX200
Capture: ICCapture. Exposure 1/367", gain 180,
3391 frames
Processing: Registax6. 160 frames stacked. Gaussian wavelets as above
A close-up picture of spot group number 11193. It first appeared around the limb on 14th April.
Date and Time: 17 April 2011 10:32 UT
Camera: DMK 21AF04
Telescope: LX200
Capture: ICCapture. Exposure 1/500", gain 180,
3447 frames
Processing: Registax6. 176 frames stacked. Gaussian wavelets as above
Home Back to Sun