1sua2(1)(WCS) sua2(1)(WCS)
2
6 Find USNO-A2.0 Catalog stars in a square on the sky
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9 sua2 [options] ra dec system
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12 suac finds all of the U.S. Naval Observatory A2.0 Catalog objects in a
13 specified region of the sky and lists their sky positions and magni‐
14 tudes in order of brightness. Output is to standard out, unless the -w
15 flag is set, in which case it goes to objectname.uac or search.uac. It
16 is a link to scat.
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19 -a list single closest catalog source -b Output B1950 (FK4) coordinates
20 -d Sort by distance from center instead of flux -e Output ecliptic
21 coordinates -f Output search center for other programs -g Output galac‐
22 tic coordinates -h Print heading, else do not -i Print catalog object
23 name, not catalog number (=ua2_region_number) -j Output J2000 (FK5)
24 coordinates -l Print center and closest star on one line -m [<bright
25 magnitude>] <faint magnitude> Limiting catalog magnitude(s) (default
26 none, bright -2 if only faint is given) -n <num> Number of brightest
27 stars to print -o <name> Object name used to name output file -p Sort
28 by distance from search center instead of brightness -q <years> Equinox
29 of output positions in years -r <radius> Search box half-width in arc‐
30 sec or dd:mm:ss If negative, this is a radius; if two numbers, first is
31 in right ascension, second is in declination. (default is 10, that is a
32 20x20 arcsec box) -s Sort by right ascension instead of flux -t Tab ta‐
33 ble output -u <num> Print X Y instead of number in front of non-tab
34 entry -v Verbose listing of processing intermediate results -w Write
35 tab table output file imagename.uac -y Epoch of output positions in
36 years
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39 scat(1), susac(1), imuac(1), sgsc(1)
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42 Doug Mink, SAO (dmink@cfa.harvard.edu)
43 19 November 1999 sua2(1)(WCS)