Use imujc to
list the 10 Brightest
USNO-UJ1.0 Stars in an
Image
Find the USNO-UJ1.0 Stars in image
test.fts and sort them by right
ascension.
$ > imujc -h test.fts
imujc 2.5, 8 December 1998, Doug Mink, SAO
test.fts: RA: 09:54:09.518 - 09:56:24.378 J2000
test.fts: Dec: +68:55:30.78 - +69:07:34.87 J2000
12 USNO J Catalog Stars at 1995.80 in FITS image test.fts
UJ number RA2000 Dec2000 Mag X Y Plate Arcsec
1575.0345246 09:55:02.790 +68:56:22.81 11.50 620.2 74.3 61 319.23
1575.0345241 09:55:01.144 +68:56:23.17 11.60 632.7 74.9 61 321.11
1575.0345436 09:55:45.020 +69:01:45.85 12.20 298.4 528.8 61 151.28
1575.0345424 09:55:41.385 +69:00:30.49 12.42 326.2 422.6 61 145.31
1575.0345155 09:54:42.271 +69:05:52.70 12.53 771.4 878.7 61 319.51
1575.0345162 09:54:45.331 +68:56:59.28 12.89 752.6 126.4 61 322.09
1575.0345111 09:54:31.669 +69:01:26.66 13.04 853.9 504.1 61 243.20
1575.0345061 09:54:18.793 +69:02:38.55 13.68 950.6 606.1 61 318.96
1575.0345193 09:54:53.251 +69:03:48.87 14.77 689.4 703.6 61 186.20
1575.0345441 09:55:46.288 +68:57:43.50 15.01 289.4 187.1 61 278.35
1575.0345457 09:55:51.156 +69:02:32.66 15.10 251.9 594.7 61 193.11
1575.0345251 09:55:04.131 +69:02:35.79 15.31 607.6 600.2 61 93.26
where the columns are zone.number, J2000 RA, J2000 Dec, magnitude, image
X and Y coordinates using the image's WCS, the USNO J Survey plate number,
and the distance in arcseconds from the plate center.
The UJ number is the zone ((90 + declination in degrees) * 10)
followed by the sequence number of the star within the RA-sorted zone.
To write a file
test.fts.ujc, use
imujc -w -n 10 test.fts
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