Sunspot 904

At the risk of boring everyone to death here's another H alpha image

Latest sun spot 904 showing some good activity.

PST CEMAX 2x barlow 506 frames out of 1000




Dave Gradwell

Dave - nice detail across the solar sphere and in the active regions.

Couple of questions - is the colour a processed colour or is that the native colour of your imager? Why did you have to throw 494 frames - quality control in the stacking software?

Cheers

Dave

I like that image Dave, it has a hint of 3D aspect to it, especially when you look at the 'mushroom' effect of the spot.

Thanks folks

What I do is to basically wipe out any blue in levels (since the only detail is in the red channel) and then adjust the color balance to that color. The camera is b/w. Also the seeing was crap 35kph winds but the LU cam at 54fps (my 1000 frames takes only 13 secs) enables you to freeze the seeing so you can be selective of the number of good frames. in fact 300 frames or less probably would have done as the cam is virtually noiseless at these light levels.

I liked the "mushroom" effect also. You can actually see the spot ejecting material.

DaveG

That's excellent Dave. Great detail and super focus.

Great capture, makes me wanna go out and get a PST.
Coronado should be paying you for this.