Just a suggestion: maybe it could be worded something like, "These images are hereby licensed for use in Stellarium (<street address here>), and its derivative works under copyright law, under the terms of the GNU GPL version 2. In all other cases, they are licensed under the Creative Commons BY-SA 3.0 license. These images, in whole or in part, shall not constitute a derivative work of Stellarium in themselves."

The "derivative works under copyright law" is from Section 0 of the GPv2; I figured matching the wording would do nicely. If you'd rather provide the images under a non-GPL, but still GPL-compatible license, maybe CC0 would work.

Those are some great images, by the way. Oh, and I am *not* a lawyer, this does not constitute legal advice, etc.

Best,
Mike

On Sun, Dec 9, 2012 at 1:24 PM, Johan Meuris <johan.meuris@gmail.com> wrote:
No worries, there will never be a licensing issue between the Stellarium team and me.  Should I write down a waiver for the use of the icon in Stellarium?  CC would apply for everyone else then.

Johan



On 9 December 2012 20:05, Bogdan Marinov <daggerstab@gmail.com> wrote:
On 12/7/12, Johan Meuris <johan.meuris@gmail.com> wrote:
> Dear all,
>
> I did some final adjustments and exported the file at different sizes.
> Attached is the Stellarium icon as an .ico file, and as png files of
> different sizes for everything else. Rename as you wish to suit your needs.
> I'm releasing this under the Creative Commons Attribution-ShareAlike 3.0
> Unported (CC BY-SA 3.0) license.
> Let me know if something else is needed!

Thank you very much for you work, Johan.

The license makes me uneasy, though, due to general unresolved issues
with licensing compatibility with the GPL, in the case exacerbated by
the fact that the .ico is embedded in the binary executable file on
Windows.

If we are going to adopt CC licenses, at the very least we should look
into the way this is presented in the licensing documentation attached
to Stellarium's package on various platforms.

Expect to hear more about this in the future. I'm not calm enough at
the moment to think straight.

Regards,
Bogdan Marinov

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