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Am 22.08.2022 um 15:36 schrieb Cousin Ricky:
> On 2022-08-21 15:15 (-4), Bald Eagle wrote:
>> MichaelJF <fri### [at] t-online de> wrote:
>>
>>> Now I
>>> found a database of 120.00 stars published by the European Space Agency
>>> (Hipparcos-Catalogue). So the next experiment is to try to understand
>>> this data and to project them at my sky-sphere.
>
> Although I'm rather leary of the stellar distances in that catalog, that
> shouldn't make any difference for your present purpose.
>
>> Cousin Ricky has you covered:
>>
>>
https://news.povray.org/povray.object-collection/thread/%3Cweb.5a7fae1be3b4c4165cafe28e0@news.povray.org%3E/
>
> The URL in that thread is still down. In the meantime, the module is
> available at:
> https://github.com/CousinRicky/POV-BrightStar5
>
> There is some discussion of projection in that thread.
Many thanks to you and Bald Eagle, I was not aware of it because I
didn't look into all POV newsgroups regularly. I just downloaded the
files from github and will take a close look within the next days.
If someone is interested: The hipparcos data can be found at
https://cdsarc.cds.unistra.fr/viz-bin/cat/I/311#/browse
FTP-Tab, hip2.dat.gz
For my image I need declination, right ascension and magnitude. But I
wonder about the colour index and if this can be of use.
Best regards
Michael
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