Concentric circles for radie

[Rudi]

I saw someones Sun image, and it had concentric circles showing the radius from centre of the sun, projected onto the surface and some further out at a fixed km interval. I cant find the picture again, but I wondered, is there some dedicated software for this? Or is it just a prefabricated image with the details and transparent background, that is overlayed the image?
And off course, I have searched the internet and SolarChat!, but with no success (I'm not always that good at coming up with good Google search terme )

[Montana]

I think what you are looking for is Regle Solaire, the solar ruler.

I did spent hours relooking for the page as it disappeared and and found it somewhere else. Now where did I find it!

Alexandra

[Montana]

Found it I think
viewtopic.php?p=404932&hilit=regle+solaire#p404932

[Rudi]

Is it called “Regle Solaire”?
The links on the page you link to, doesn’t seem to work.

I tried googling “Regle Solaire”, but end up with at lot of irrelevant sites.

Perhaps the site has moved?

[Montana]

Oh dear, looks like it has moved again may be the creator is giving up. If you PM me with your email address I will send you the file.

Alexandra

[LLichter]

TbH this sound like a fun little software project.

If you two can't find this other software anymore hit me up i might find some cloudy free time to implement something like this again in golang so you can use it on windows and linux

[Montana]

I have the file, just private message me with your email address and I will send it to you.

Alexandra

[Montana]

Has anyone sent me a private message?
There is a concern elsewhere that they don't seem to be working
Alexandra

[Rudi]

I haven’t. But that’s because I’m extremely careful with what executables I run on my PC ;-)

If I get the time, which is doubtful, I will write my own C# code and share the source.

[Montana]

Hi Rudi,

It is just a PDF file, a template you open in Photoshop or GIMP. It is perfectly as safe as any PDF you open.

Alexandra

[Rudi]

Thanks again Alexandra!

I gave it a shot in Affinity Photo, works great.


And another one of my resent solar full disk images.

[Montana]

Brilliant!!! I am so glad it worked for you

Now you can measure all those erupting proms

Alexandra