Saturday, August 3, 2024

Calcium blue wing image of the Sun with Sol'Ex (CaIIK1v & CaIIH1v)

Imaging the Sun with Sol'Ex version 1 in Calcium blue wing (CaIIK1v & CaIIH1v) and H-alpha blue wing; this is -1,5A from the central CaK/H line.
The calculate the number of pixels which correspondents with 1,5A I used following formula :

H-alpha = -24* 2,4/pixelsize camera or for my camera = -24*2.4/2.9 = -19,86 pixels counting from the central H-alpha line equals 1,5A
CaK/H = -19*2,4/ pixelsize camera or for my camera = -19*2.4/2.9=-15.72 pixels counting from the central CaK or CaH line equals 1,5A

Images show the lower photosphere; the central line is showing the chromospehere.
Inti was used to generate the images and editing was done using CS4. 



Wednesday, July 31, 2024

Sun in MgI(b2), H-alpha blue wing and Ca-K with Sol'Ex

A made a comparison of the Sun in the following lines : Mg I(b2), H-alpha blue wing (-1,5A) and Ca-K.
Good comparison between first two line, Ca-K is clearly higher above the photosphere.

 



Monday, July 29, 2024

H-alpha, H-beta and H-delta comparison

 

Comparison between H-alpha, H-beta and H-delta line of the sun. Images taken with heliospectrograph Sol'Ex v1 on TLAPO60/360 with ASI290MM.

First time : Imaging Sun in H-delta with Sol'Ex

My first time I imaged the Sun in H-delta. A comparison with my image of the Sun in H-beta shows that H-beta is more into the chromosphere then H-delta line.

Setting : TLAPO60/360 with Sol'Ex v1 and ASI290MM
Filter : Herschel Wedge (1.25")
Software : SharpCap4, Inti, JSolex, CS4




Sun H-Alpha with Sol'Ex and Herschel Wedge

The Sun imaged on July 28, 2024 using my Sol'Ex version 1 with Herschel wedge and ASI290MM. The focus was on the use of the Herschel Wedge. Image made in H-Alpha. 

Setting : TLAPO60/360, Sol'Ex v1 with ASI290MM
Filter : Herschel Wedge Lacerta (1.25")
Software : SharpCap 4, Inti, JSolex2.6.0, IMPPG and CS4





Sunday, July 28, 2024

Sun in H-beta - Sol'Ex with Herschel Wedge

The Sun this morning in H-beta. This time I used my Sol'Ex version 1 with Herschel Wedge in stead of Solar filter Hoya ND16.

Setting : TLAPO60/360, Sol'Ex v1 with ASI290MM
Filter : Herschel Wedge Lacerta (1.25")
Software : SharpCap 4, Inti, JSolex2.6.0 and CS4



Saturday, July 27, 2024

Line broadening in Sunspots with Sol'Ex

 


Using my Sol'ex (version 1) I'm able to observe line broadening in sunspots. As shown in the image, the spectrallines in sunspot 3759 (upper picture) is bolder and broader that the line in the photosphere (below of the picture). The phenomene is due to magnectic activity in sunspots and becomes visible in metalic spectrallines; in this case Titanium, Calcium and Iron.