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Bug#795933: kstars-data-extra-tycho2: should be moved to free

Package: kstars-data-extra-tycho2
Severity: wishlist
Version: 1.1r1-9
X-Debbugs-Cc: 795933@bugs.debian.org

This is basically a reversal request for #681654 [1].
For the use of the Tycho-2 catalog [2] with the "astrometry.net" program (currently in NEW) [3], I contacted the author of the catalog, and after some iterations, I got the confirmation that the catalog may be distributed under a BSD-2-Clause license -- see the attached E-Mail.
Since this makes the Tycho-2 catalog DFSG-free, I would propose to move it back to Debian/main.
If you can provide me with the rule how to create the kstars catalog from the original one, I would also happily create the kstars-data-extra-tycho2 binary package within my package. 

Best regards

Ole

[1] http://bugs.debian.org/681654
[2] http://bugs.debian.org/795933 (ITP)
[3] http://bugs.debian.org/793461 (ITP)
--- Begin Message --- 
OK
Erik
________________________________________
From: Ole Streicher [olebole@debian.org]
Sent: Monday, September 14, 2015 10:10 AM
To: Erik Høg
Subject: Re: Tycho-2 Catalogue copyright

Dear Erik,

in August we had a short discussion about the copyright of the Tycho-2
catalogue, but didn't come to an conclusion.

A good example for the copyright clause here would be the one that is
used in the Berkeley Software Distribution:

-----------------------------8<----------------------------------------
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-----------------------------8<----------------------------------------

The modification is important, since it includes f.e. conversion to
other formats, combination with other catalogues, corrections and so on.

Or should I discuss this with someone else? Whom would you recommend?

Best regards

Ole Streicher

On 19.08.2015 14:02, Ole Streicher wrote:
> Hi Erik,
>
> sorry to disturb you again, and that I am a bit picky here: I think it
> is reasonable to have it modifiable. Someone may want to add a
> correction to it (f.e. apply more accurate positions or proper motions
> from another survey) -- this should ofcourse be documented, but not
> forbidden.
>
> The permission to modify the data is needed (along with the permissions
> to use and redistribute it) to get the catalog into free Linux
> distributions.
>
> Best regards
>
> Ole
>
> Am 19.08.2015 um 07:18 schrieb Erik Høg:
>> You should not MODIFY, but you can distribute with due reference.
>> Erik
>> ________________________________________
>> From: Ole Streicher [olebole@debian.org]
>> Sent: Tuesday, August 18, 2015 10:21 AM
>> To: Erik Høg
>> Subject: Re: Tycho-2 Catalogue copyright
>>
>> Dear Erik,
>>
>> this is good news! Especially since former messages from CDS sounded
>> more restrictive.
>>
>> Just to be sure: There is no restriction to use, modify, or distribute
>> Tycho-2 (in the format as f.e. published on Vizir), right? And would you
>> allow me to forward you answer to public mailing lists etc?
>>
>> Best regards
>>
>> Ole
>>
>> Am 18.08.2015 um 09:50 schrieb Erik Høg:
>>> There is no license required
>>> Erik Høg
>>>
>>> From: Ole Streicher [olebole@debian.org]
>>> Sent: Monday, August 17, 2015 1:55 PM
>>> To: Tycho-2@astro.ku.dk
>>> Subject: Tycho-2 Catalogue copyright
>>>
>>> Dear Erik,
>>>
>>> I am working to get the program "astrometry.net" into the Debian Linux
>>> distribution. The program uses data that are created from the Tycho-2
>>> catalogue.
>>>
>>> As you might know, Debian is a free software distribution, so it
>>> requires that its contents follow the "Debian Free Software Guidellines"
>>> [1]. It would be nice to have the astrometry index files created from
>>> the Tycho-2 catalogue included in the software distribution. For this, I
>>> would however need to know the actual license of the Tycho-2 catalogue,
>>> which is not documented on the web pages.
>>>
>>> Could you give me the status here?
>>>
>>> Best regards
>>>
>>> Ole
>>>
>>> [1] https://www.debian.org/social_contract#guidelines
>>>
>>
>

--- End Message ---
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