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Re: Bug#597202: ITP: kstars-data-extra-tycho2 -- Contains the Tycho2 star catalog for centralized install, avoiding per-user install

On Domingo 19 Septiembre 2010 13:03:04 Javier Fernández-Sanguino Peña 
> Hi,
> First of all, please first note there is an informal policy for Stars data
> catalogues which is available in the 'stardata-common' package (more info
> at http://alioth.debian.org/projects/stardata-common/). We already provide
> some star data catalogues (Gliese and Yale which are both non-free) in
> Debian and we should strive to follow the same rules for any star data
> catalogues we provide.

I will read that, but I'm not trying to package stardata catalogs for use by 
any program, but to package any kind of kstars' data (catalogs, images and DST 
rules) for use within kstars. It would be a secondary goal to make the 
catalogs in that set of nine datasets available to other applications, 
moreover when they are already in the kstars data format.
> > Actually kstars offer each user to download some data, from the net,
> > which causes bandwith and disk waste (See #596007). I will package one
> > of those datafiles (one of the catalogs) to avoid that, and I want to
> > package the remaining afterwards.
> If you are packaging datfile it would be best if they follow the policy
> above so that other astronomy packages (stellarium, stardata, etc.) can
> use them. This means using the original (unmodified) files and providing
> scripts/tools (which probably the Kstars team has developed) to convert
> them into files usable for other software.

Would it be better to have users download "source" data catalogs and then 
transforming them into "binary" useable datfiles? I thought that was the Gentoo 
way, not Debian's. Anyway, I do not care at the moment on other programs. I 
will help, if I can, and I undoubtlessy will accept any offered help in 
packaging these nine dataset (not only catalogs) in any other way that allow 
them to be used by other programs, but that is far out of my priority, which 
is having kstars data users on the same computer to download and store kstars 
data packages only once.
> > * Package name    : kstars-data-extra-tycho2
> > 
> >   Version         : 1.1r1
> >   Upstream Author : Akarsh Simha, Jason Harris <kstars-devel@kde.org>
>     The 'upstream authors' of the Tychos2 catalog are not some KDE
> developers (with all my respect to their work). Please see
>     http://www.astro.ku.dk/~erik/Tycho-2/ From
>     http://www.astro.ku.dk/~erik/Tycho-2/Tenyears.eml the autors are E.
> Høg, C. Fabricius, V.V. Makarov, S. Urban, T. Corbin, G. Wycoff, U.
> Bastian, P. Schwekendiek, and A. Wicenec.

True, but what I'm packaging is the kstars data file, not the original Tycho-2 
catalog. The file I'm packaging has the authors I've expressed in the ITP ad 
you can see in http://edu.kde.org/kstars/downloads/knewstuff.xml where other 
datasets are tagged with other authors and licenses.
> > * URL             :
> > http://edu.kde.org/kstars/downloads/tycho2_mag_12.5-1.1.tar.bz2
>     The URL for the upstream catalog is not correct. This is the URL for
> the files distributed by KDE which are maybe *not* the original files.

But this is the file I'm packaging, as expressed above.
> > * License         : GPL
>     This license is *not* the license the Tycho2 catalog was distributed
> with 10 years ago (8th february 2000). It might be worth clarifying with
> Erik Høg, original author of the catalog from the Niels Bohr Institute
> under which license this catalog can be distribued.
>     Please note that other catalogues distributed by international
>     organisations (ESA, NASA) have had a 'please do not modify these files'
>     strings attached and have thus fallen into non-free (see gliese and
>     yale catalogues).

That is the license of the file I'm distributing. Should I contact Simha and 
Harris to see if THEY are violating the Tycho-2 catalog license?
> >   Programming Lang: N/A
> >   Description     : Contains the Tycho2 star catalog for centralized
> >   install, avoiding per-user install
> If the package provides the Tycho2 star data catalogue it should provide
> the *original* catalogue as available in
> http://tdc-www.harvard.edu/catalogs/tycho2.html and not a "pre-cooked" file
> for kstars. If it provides a pre-cooked file for kstars then it should note
> it.

Well, the name itself says it is data for kstars. The package is not named 
"tycho2-catalog" but "kstars-data-extra-tycho2". Isn't it?
> As for the license, I do not agree with the license you set up for this
> package. If you review http://cdsarc.u-strasbg.fr/cgi-bin/myqcat3?I/259/,
> the Tychos star data catalogue files are certainly *not* GPL. There is no
> mention to the license the catalog can be used with in the README file,
> and certainly there is no mention to the GPL. As such, it can only be
> considered 'non-free'.

As said, I'm not packaging the original Tycho-2 catalog, but a derivative work 
on it. Maybe that derivative work is authorized to be under by GPL.
> Actually, I believe that the fact that the catalog is not provided *within*
> the kstars program is certainly because it is not considered free.

I believe instead that the fact that the catalog is not provided *within* the 
kstars program is certainly because it is quite big and unnecessary for 
ocassional use of the program as a home planetarium, since kstars has its own 
set of predefined stars up to the visual magnitude. Datafile authors (which are, 
by the way, two of the same authors of the program itself) say the datafile is 
GPL, so I can not think they decided not to include it because of it being not 
> Please review the licensing status of the original data files before you
> make an upload of this package to Debian.

Sure I will do.
> If you are interested in astronomy packages, I encourage you to subscribe
> to the stardata-common-devel mailing list to seek assistance on how to
> (properly) package star data catalogues in Debian.

As said, I'm not interested in astronomy packages in general (false, I'm 
interested but don't have a damn single minute free), but just on avoiding a 
very concrete problem I've detected on computers I take care of, namely that 
the same gigabytes are downloaded and stored several times. Anyway, every help 
offered to get these datasets ported on to the stardata-common-devel format 
will be accepted, and if that work starts or if I get more time to package 
other catalogs (or even use other astronomy programs), I will surely join that 
mailing list.
> Regards
> Javier

Un abrazo

er Envite

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