The Sun on 22 April 2011 Home

The whole Sun.  Groups 11197 and 11198 are very small and are not resolved in this picture.

Date and Time: 22 April 2011 11:50 UT
Camera: DMK 21AF04
Telescope: 270 mm SLR
Capture: ICCapture. Exposure 1/618", gain 180, 3322 frames
Processing: Registax6. 2 alignment points, 481 frames stacked. Gaussian wavelets 1(0.1,0.07)=100, 2(0.15,0.1)=100, 3(0.44,0.1)=100, Histogram 66-210.
A close-up picture of spot number 11193.  This group first appeared around the limb of the Sun on the 14th of April and is at about 18° south.

Date and Time: 22 April 2011 12:03 UT
Camera: DMK 21AF04
Telescope: LX200
Capture: ICCapture. Exposure 1/1000", gain 180,
3777 frames
Processing: Registax6. 793 frames stacked. Gaussian wavelets as above
Histogram 17-135
A close-up picture of spot number 11195.  This spot first appeared on 20th April.

Date and Time: 22 April 2011 12:05 UT
Camera: DMK 21AF04
Telescope: LX200
Capture: ICCapture. Exposure 1/1000", gain 180,
3419 frames
Processing: Registax6. 284 frames stacked. Gaussian wavelets as above
Histogram 40-140.

Spots 11196 and 11197 are rather insignificant so here they are along with group 11195 to show their relative sizes and positions.  Number 11196 is at about 26° south.  (Move your mouse pointer over the image to see the labels.)

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