Use imusa2 to
list the 10 Brightest
USNO-SA2.0 Stars in an
Image
Find the 10 brightest USNO-SA2.0 Stars in image
test.fts and sort them by right
ascension.
imusa2 2.9.4, 2 July 2001, Doug Mink (dmink@cfa.harvard.edu)
test.fts: RA: 09:54:09.518 - 09:56:24.378 J2000
Dec: +68:55:30.78 - +69:07:34.87 J2000
10 / 40 USNO SA-2.0 Catalog Stars MagR < 16.7
USNO SA2 number RA2000 Dec2000 MagB MagR Plate X Y
1575.00497921 09:54:14.015 +69:01:03.34 16.4 15.7 38 987.8 472.2
1575.00498059 09:54:26.313 +69:00:25.52 17.3 15.5 38 895.0 418.1
1575.00498227 09:54:38.931 +68:55:42.18 17.3 15.9 38 801.9 18.0
1575.00498264 09:54:42.403 +69:02:56.93 18.9 15.5 38 771.8 630.8
1575.00498468 09:54:59.607 +68:56:22.87 17.7 16.3 38 644.4 74.5
1575.00498540 09:55:05.967 +68:56:25.75 16.0 14.5 38 596.0 78.3
1575.00498894 09:55:34.657 +69:07:33.00 17.8 9.3 38 375.7 1018.5
1575.00499040 09:55:45.183 +68:57:24.96 17.3 14.1 38 297.8 160.9
1575.00499253 09:56:03.653 +68:59:07.20 18.6 11.1 38 157.5 305.0
1575.00499488 09:56:22.111 +68:56:18.15 18.5 16.7 38 17.3 66.6
where the columns are region.number, J2000 RA, J2000 Dec, B and R magnitudes
image X and Y pixel coordinates computed using the
image world coordinate system,
the plate, unless from a catalog, and the distance in arcseconds from the center
of the image. To write a file
test.fts.usa2, use
imusa2 -w -n 10 test.fts
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