WCSTools catalog programs

sty2 Examples

Example 1. Search with results to standard output

Find the 10 brightest Tycho-2 stars in a 1-degree box centered at 10:00:00 +10:00:00 and sort them by right ascension.
sty2 -shn 10 -r -1800 10:00:00 +10:00:00 J2000
produces the following:
sty2 WCSTools 3.6.9, 5 July 2007, Doug Mink SAO
   TYCHO-2 10:00:00.000 +10:00:00.00 J2000 +- +00:30:27.8 +00:30:00.0 at epoch 2000.0000
10 / 33 Tycho 2 Catalog Stars (MagB brighter than 11.60)
Tycho2_num   RA2000       Dec2000      MagB   MagV    Arcsec
0829.00231 09:58:00.597 +09:41:40.61   9.38   9.01   2079.10
0832.08721 09:58:07.997 +10:01:52.74  11.05  10.51   1658.28
0832.10651 09:58:28.099 +10:02:51.17  10.46   9.87   1368.22
0832.09811 09:58:28.739 +10:25:28.51   9.98   9.32   2037.49
0832.06321 09:58:45.688 +10:27:31.08   9.09   7.30   1982.27
0832.09051 09:59:17.051 +10:10:03.02  10.40   9.75    875.19
0829.07851 10:00:59.907 +09:40:43.74  11.22  10.51   1456.32
0832.10121 10:01:24.390 +10:04:24.78  11.60  11.02   1274.30
0829.01931 10:01:42.735 +09:36:40.38  11.17  10.05   2065.14
0832.12001 10:01:46.849 +10:12:57.38   9.84   9.24   1758.97

Example 2. Search with results to a file

Find all Tycho-2 stars within 1 degree of M51 and write results to a file
sty2 -twr 3600 -o m51 13:27:48.311 +47:27:28.98 B1950
produces the following in the file m51.tycho2:
catalog TYCHO-2
ra      13:27:48.311
dec     +47:27:28.98
radecsys        fk4
equinox 1950.0000
epoch   1950.0000
rpmunit mas/year
dpmunit mas/year
radsec  3600.00
catsort mag 
program sty2 WCSTools 3.6.9, 5 July 2007, Doug Mink SAO
tycho2_id 	ra1950      	dec1950  	magb	magv	pmra  	pmdec 	arcsec
----------	------------	------------	-----	-----	------	------	------
3463.02841	13:29:50.208	+47:29:28.31	7.33	7.09	  28.6	  -7.8	1241.62
3460.01001	13:26:55.864	+48:06:18.49	7.53	7.10	 -47.6	   1.2	2388.74
3460.05191	13:27:11.411	+46:37:43.33	8.65	8.20	  -1.5	   7.5	3009.38
3466.09541	13:31:08.218	+48:00:55.45	8.82	7.59	  16.7	 -44.2	2844.77
3460.02151	13:25:07.487	+48:15:39.60	9.87	8.50	  -4.3	 -38.0	3312.90
 . . .

3466.11031	13:28:11.374	+48:06:12.94	13.15	12.05	 -19.2	  10.1	2335.55
3460.05931	13:24:29.756	+47:04:34.67	13.20	12.13	-215.0	  91.5	2444.01
3463.05801	13:30:19.243	+47:15:16.71	13.30	12.84	  -8.8	  -9.6	1699.54
3460.02391	13:25:23.328	+47:54:29.20	13.61	12.24	  -7.4	 -12.1	2183.72
3463.05641	13:30:42.205	+46:54:17.63	13.68	12.46	  13.5	 -13.7	2666.17

Example 3. Find closest star

Find the closest Tycho-2 star to 10:00:00 +30:00:00 J2000
sty2 -ha 10:00:00 +30:00:00 J2000
produces the following:
sty2 WCSTools 3.6.9, 5 July 2007, Doug Mink SAO  Find closest star
   TYCHO-2 10:00:00.000 +30:00:00.00 J2000 r= +00:30:00.0 at epoch 2000.0000
Tycho2_num   RA2000       Dec2000      MagB   MagV    Arcsec
1967.03071 10:00:09.788 +29:54:57.49  13.73  12.71    328.16

Example 4. List selected stars from catalog

List the first 10 stars in the Tycho-2 Reference Catalog disregarding their actual ID numbers.
sty2 -h 1-10x1
produces the following:
sty2 WCSTools 3.6.9, 6 July 2007, Doug Mink SAO
Tycho2_num   RA2000       Dec2000      MagB   MagV  
0001.00081 00:09:16.201 +02:13:54.64  12.15  12.15 
0001.00131 00:04:30.140 +02:16:02.62  10.49   8.67 
0001.00161 00:04:13.648 +01:53:52.18  12.92  12.10 
0001.00171 00:00:12.144 +01:46:17.20  11.32  10.52 
0001.00172 00:00:12.144 +01:46:17.20  10.77  10.09 
0001.00201 00:01:29.328 +02:28:48.68  12.19  11.40 
0001.00221 00:04:06.640 +01:27:30.57  12.68  12.29 
0001.00241 00:03:05.836 +01:42:38.14  12.54  11.70 
0001.00361 00:01:11.613 +01:55:25.02  11.67  11.65 
0001.00391 00:09:29.140 +02:18:14.41   9.51   9.39

Example 5. Match stars in input catalog

Match the stars in the input catalog test.tab to the ACT Reference Catalog and list them one match per line.
sty2 -l @test.tab
produces the following:
240020 22:15:54.555 -11:36:56.13  9.80  __  5806.06961 22:15:54.555 -11:36:56.23 10.99 10.24 29    -0.00    -0.10     0.10
267313 17:47:51.210 -22:58:17.35  9.10  A0  6828.03531 17:47:51.195 -22:58:17.30  9.28  8.91 50    -0.21     0.05     0.22
196784 13:42:07.204 -09:06:40.06  8.60  K0  5546.14081 13:42:07.201 -09:06:40.06  9.64  8.65 22    -0.05     0.00     0.05
127373 10:24:43.528 +11:21:21.15 10.20  K0  0841.12051 10:24:43.507 +11:21:21.50 10.80  9.49 21    -0.31     0.35     0.47
095438 06:07:46.792 +23:28:44.76 10.30  K0  1864.07621 06:07:46.837 +23:28:44.95 10.45  9.36 131     0.62     0.19     0.65
where the columns are input catalog star name, RA, Dec, magnitude, spectral type, Guide Star region.number, RA, Dec, Bt magnitude, Vt magnitude, number of stars in the 1800-arcsec-radius default search radius, and catalog - search dra, ddec, and dr (in arcseconds).

Telescope Data Center

Last updated 8 July 2007 by Doug Mink

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