Hi guys, i would like to create this effect with inkscape but don't know where to start. There is no tutorial on these on internet so i need some help from the pros

Hi.

With key binding you can "unlock" the hidden gradient mesh feature, -above 0.91-, still in development, for a good start.
Not part of the current svg specs, present only because new cairo renderer -32 bit win built uses an outdated version so there it won't work.
Patches are welcome, so they say.

Other approach would be by using blurring and filter editing.
Here is something similar (the stardust was the goal and not the aurora polaris though).

I would say that there are many different ways to approach this. Most of them need at least a little prior experience with Inkscape....I can't see a newbie being very successful...at least not on the first couple of tries. If you need some suggestions for learning Inkscape, we can give you plenty. (You didn't mention anything about your experience.) You do realize that Inkscape is a vector graphics editor, right?

Assuming you're talking only about the sky, you would want to use blurs and gradients. Believe it or not, the starry sky might be the hardest part. I'd probably experiment with Tiled Clones for that.

And possibly a raster editor could be helpful too.

If you can give us some more info about your project (and your experience), we might be able to be more specific about how to do it.

Here is my try with only using filters:



(Also related topic with the trailing lines.)