Posted by
karenacollins on
Mar 17, 2020; 11:41am
URL: http://astroimagej.170.s1.nabble.com/Importing-variable-and-comparison-stars-from-databases-tp1305p1310.html
Hi Magnus,
Currently there's no import capability directly from a database.
However, if you can extract the stars from a database outside AIJ,
you can use the import Image_Window->File->"Import Apertures
from RA/Dec" option to load them into AIJ. To see the format needed,
use multi-aperture to place a couple of apertures in an image or
image stack and run photometry. Then use "Export apertures to RA/Dec
list". The text file that is written describes the format in
comments at the top.
The input text file should look like this:
----------------------------------------------------
#RA in decimal or sexagesimal HOURS
#Dec in decimal or sexagesimal DEGREES
#Ref Star=0,1,missing (0=target star, 1=ref star, missing->first
ap=target, others=ref)
#Centroid=0,1,missing (0=do not centroid, 1=centroid,
missing=centroid)
#Apparent Magnitude or missing (value = apparent magnitude, or value
> 99 or missing = no mag info)
#Add one comma separated line per aperture in the following format:
#RA, Dec, Ref Star, Centroid, Magnitude
04:32:43.058, -39:47:31.40, 0, 1, 99.999
04:31:52.321, -39:47:14.47, 1, 1, 99.999
04:31:55.073, -39:37:00.49, 1, 1, 99.999
04:32:12.475, -39:33:20.93, 1, 1, 99.999
04:33:02.920, -39:42:45.28, 1, 1, 99.999
04:31:58.477, -39:47:56.08, 1, 1, 99.999
04:32:36.755, -39:46:05.24, 1, 1, 99.999
04:32:48.209, -39:56:24.66, 1, 1, 99.999
Karen
On 3/15/2020 4:56 PM, magnusl [via
AstroImageJ] wrote:
Hi!
I'm very much of a newbie to AstroImageJ, so this might be a dumb
question. I am currently only doing photometry on variable stars.
I find AstroImageJ very interesting, but to be able to do the
photometry easy, I would like to import varible and comparison
star data from existing databases. Is there a way to do that now?
I cannot find it in the documentation.
Magnus Larsson
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NAML