Na D1, D2 and He D3 line in solar spectrum

Using ASI224MC on Sol'Ex, I'm able to mark the Na D1 and D2 line but also the He D3 or d line. Capture done using SharpCap 4.

Sol'Ex Spectrum with ASI2600MC

This afternoon I connected my ASI2600MC to the Sol'Ex and TSAPO60/360 f/6. Using SharpCap 4 I made a couple of images of the solarspectrum.

Based on known line I calculated some more difficult lines :

    - He D3 or d line, 

    - H delta or h-line and 

    - Fe I G-Line. 

Sol'Ex - Exploded view

Building my Sol'Ex ... Exploded view. The slit has an angle of 15°. The grating has 2400 grooves/mm. Shortly I will be discussing the theory. 

Sol'Ex with ASI2600MC

 

Some further experimentation with my Sol'Ex. This time I'm using my ASI2600MC color camera. This camera has an APS/C sensor which results in a capturing a bigger spectrum. Getting a larger spectrum was easier to find the absorption lines: eg. CaK &H line, H beta, Mg triple, Na double and H-alpha. I was also able to find the slit, and thus the zero order. 

Saturn: First picture of 2023

My first picture of Saturn this year 2023. It's 17 days before opposition and after a long time a cloudfree night. Seeing was poor and good transparency. The image shows some destinction of the clouds. 

Setting: 

TAL200K f/8.5 ASI224MC

ASI224MC setting

    - WB setting: R55, B85

    - Exposure 65ms

    - RAW16 488x488 PNG files (no SER)

Barlow x2, ADC, UV/IR cut filter

Software: SharpCap 4, AS3! (5% Best of), AstroSurface U4, CS4, WinJupos

First light with Sol'EX

My first light with Sol'EX with TS APO60/360 f/6 and ASI224MC. Capturing was done using SharpCap4 and editing with CS4. Still some learning to do but so far... real cool! I'm to trace back the Ca K&H line, hydrogen Beta and the triple magnesium. In the red spectrum I'm not sure what the elements are.

Website J Giesen Physics and Astronomy - Use of Applets via Chrome

Sometimes I surprise myself about the functioning of a website and I underestimate the value and power of a website. I'm talking about J.Giesen's website (http://www.jgiesen.de/welcomeEnglish.htm) which provides a huge information about the Physics and Astronomy and more specific on everything related to the sun and it's calculations.

The website is referring to different Java applets. I knew this but only now I figured out how to run them. So what did I do?

- I add CheerpJ Applet Runner (free of charge) to my Chrome browser (edge is also possible)

- Next, I go to a webpage of J.Giesen's website with a specific applet and click on "extentions" and o double click on CheerpJ Applet Runner. What happens now is that the applet will be opened. Real cool.

These applets are a real help in understand calculations of spherical astronomy and solar calculations. A real cool applet is the one of the Meridian of Santa Maria degli Angeli e dei Martiri in Rome which gives you a details.