20150622_2_z_korong_mozaik_csakkitoresek_2___kesz_sarga_

The Sun in Hα

I imaged the Sun using a Lunt LS35T Solar Scope combined with a webcam for hydrogen alpha and a MC 102/1300 with ND3.8 and K-line filter combined with a Canon 1100D, both mounted on an EQ3. While far from ideal setups (like full spectrum sensor), I managed to capture some nice shots.

The Hα disk is a mosaic of 8 frames: the solar scope has a very annyoing vignettation. A total of 20 GiB video data was filmed. Eruptions come from the same raws, edited separately and then added to the disk.

The K line images are a stack of 15 photos shot with the DSLR powered by Magic Lantern.

I detail the process below showing the stages of the imaging session in pictures. Processig was done in Canon Digital Photo Professional (raw->tiff16), Registax6 and GIMP.

Mosaic frame 1

Mosaic frame 1

Mosaic frame 2

Mosaic frame 2

Mosaic frame 3

Mosaic frame 3

Mosaic frame 4

Mosaic frame 4

Mosaic frame 5

Mosaic frame 5

Mosaic frame 6

Mosaic frame 6

Mosaic frame 7

Mosaic frame 7

Mosaic frame 8

Mosaic frame 8

Mosaic stitched. Vignettation artifacts still evident

Mosaic stitched. Vignettation artifacts still evident

Checking for eruptions

Checking for eruptions

The dynamic range of the picture wouldn’t allow me to process all data together

The dynamic range of the picture wouldn’t allow me to process all data together

So extracting the eruptions to a layer

So extracting the eruptions to a layer

The disk: trying to make it more uniform

The disk: trying to make it more uniform

Trial: looks bad

Trial: looks bad

Trial, looks bad

Trial, looks bad

Still bad

Still bad

The finished picture in red

The finished picture in red

Sum of the R and a G channel obtained from R via curving, accepted as final output

Sum of the R and a G channel obtained from R via curving, accepted as final output

Eruptions

Eruptions

Eruptions, bw from R

Eruptions, bw from R

The Sun in K line

The Sun in K line

framing…

framing…

The Sun in K line colored

The Sun in K line colored

 

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