[AstroPy] Past Mention of Source Extractor Command in IRAF?
Wayne Watson
sierra_mtnview at sbcglobal.net
Tue Apr 28 20:58:52 EDT 2009
Just IRAF. Well, I can easily get around this in a paper I'm writing by
just saying that IRAF is another tool that does source extraction. BTW,
who created IRAF and who supports it? I found the install pdf. Ah, NOAO.
I don't have it installed, since I'm on Win. I did did install Cygwin,
but never got around to installing it there. It's not something I need
immediately.
Rose Finn wrote:
> I am not sure if you are referring to astrometry.net, but I think it
> does much of what you describe:
>
> http://astrometry.net/
>
> Take care,
> Rose
>
> On Tue, Apr 28, 2009 at 8:25 PM, Wayne Watson
> <sierra_mtnview at sbcglobal.net> wrote:
>
>> Probably not, but is what you mentioned source extraction? The idea is
>> that you take a picture of some part of the night sky, and then turn it
>> over to the source extractor. It twists, rescales, and turns your image
>> every which way until it matches 10 or more corresponding objects
>> (stars, etc.) in a photographic atlas of some sort. If it looks right,
>> you can then extract information about those objects and maybe others.
>> It's an astrometric tool.
>>
>> James Turner wrote:
>>
>>>> I believe in some of my exchanges on this mailing list in the last
>>>> many works someone mentioned an IRAF facility akin to what is
>>>> popularly called source extract. Mention was made of what could be
>>>> considered a command name that somehow is used in connection with the
>>>> idea. Does anyone know what that single (command) word was or where I
>>>> would find the extractor topic discussed in IRAF?
>>>>
>>> Is it noao.digiphot.apphot (type "help apphot")?
>>>
>>> James.
>>>
>>>
>> --
>> Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>
>> (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
>> Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
>>
>> All the neutrons, and protons in the human body occupy
>> a cube whose side is 5.52*10**-6 meters (tiny!). That
>> adds up to a 150 pound person. It's not a surprise that
>> we are mostly space. (Calculation by WTW)
>>
>>
>> _______________________________________________
>> AstroPy mailing list
>> AstroPy at scipy.org
>> http://mail.scipy.org/mailman/listinfo/astropy
>>
>>
>
>
>
>
--
Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
All the neutrons, and protons in the human body occupy
a cube whose side is 5.52*10**-6 meters (tiny!). That
adds up to a 150 pound person. It's not a surprise that
we are mostly space. (Calculation by WTW)
More information about the AstroPy
mailing list