sua2(1)
Find USNO-A2.0 Catalog stars in a square on the sky
Synopsis
sua2 [options] ra dec system
Description
suac
finds all of the U.S. Naval Observatory A2.0 Catalog objects in a specified
region of the sky and lists their sky positions and magnitudes in order of
brightness. Output is to standard out, unless the -w flag is set, in which
case it goes to objectname.uac or search.uac. It is a link to scat.
Options
-a
list single closest catalog source
-b
Output B1950 (FK4) coordinates
-d
Sort by distance from center instead of flux
-e
Output ecliptic coordinates
-f
Output search center for other programs
-g
Output galactic coordinates
-h
Print heading, else do not
-i
Print catalog object name, not catalog number (=ua2_region_number)
-j
Output J2000 (FK5) coordinates
-l
Print center and closest star on one line
-m [<bright magnitude>] <faint magnitude>
Limiting catalog magnitude(s) (default none, bright -2 if only faint is given)
-n <num>
Number of brightest stars to print
-o <name>
Object name used to name output file
-p
Sort by distance from search center instead of brightness
-q <years>
Equinox of output positions in years
-r <radius>
Search box half-width in arcsec or dd:mm:ss
If negative, this is a radius; if two numbers, first is in right ascension,
second is in declination. (default is 10, that is a 20x20 arcsec box)
-s
Sort by right ascension instead of flux
-t
Tab table output
-u <num>
Print X Y instead of number in front of non-tab entry
-v
Verbose listing of processing intermediate results
-w
Write tab table output file imagename.uac
-y
Epoch of output positions in years
