On Wed, Dec 18, 2013 at 1:53 AM, Roman Fleysher <
roman.fleys...@einstein.yu.edu> wrote:
> Perhaps this is a weird way for me to get deeper knowledge of R trees, and
> because I vaguely remember that Tyco refers to a specific epoch in which
> coordinates are defined, but would it be possible to
coordinates the metric could use some
other coordinates?
Roman
Original message
From: "Brian T. Carcich" <briantcarc...@gmail.com>
Date: 12/18/2013 1:24 AM (GMT-05:00)
To: General Discussion of SQLite Database <sqlite-users@sqlite.org>
Subject: Re: [sqlite
On Tue, Dec 17, 2013 at 3:57 PM, Roman Fleysher <
roman.fleys...@einstein.yu.edu> wrote:
>
> Since coordinate system is spherical, how do you tell that RA=23:59 and
> RA=00:01 are next to each other using usual comparisons?
I don't; usual comparisons won't work so I do two comparisons:
I am
On Tue, Dec 17, 2013 at 3:51 PM, Dan Kennedy wrote:
> On 12/18/2013 12:49 AM, Brian T. Carcich wrote:
>
>> [...]
>
> Points are fine. [...]
> Is it working now? How many more stars do you have data for?
Excellent, thanks for the info!
I forgot to mention that we do
...@gmail.com]
Sent: Tuesday, December 17, 2013 3:51 PM
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] General R*Tree query
On 12/18/2013 12:49 AM, Brian T. Carcich wrote:
> I'm working on an SQLite solution to get at star catalogs; they are usually
> searched via Right Ascension (RA), Declinatio
On 12/18/2013 12:49 AM, Brian T. Carcich wrote:
I'm working on an SQLite solution to get at star catalogs; they are usually
searched via Right Ascension (RA), Declination (DEC), and magnitude (mag).
RA,DEC is a spherical coordinate system to specify a star position on-sky;
magnitude is related
I'm working on an SQLite solution to get at star catalogs; they are usually
searched via Right Ascension (RA), Declination (DEC), and magnitude (mag).
RA,DEC is a spherical coordinate system to specify a star position on-sky;
magnitude is related to star brightness.
What I have so far is here:
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