WCSTools utility programs

skycoor
Examples

1. Print B1950 coordinates for two J2000 positions
skycoor -v 9:55:41.600 +69:00:27.99 J2000 9:54:53.258 +69:03:49.30 J2000
SKYCOOR 2.2 13 May 1998, Doug Mink, SAO
9:55:41.600 +69:00:27.99 J2000 -> 09:51:36.102 +69:14:41.51 B1950
9:54:53.258 +69:03:49.30 J2000 -> 09:50:46.961 +69:18:00.96 B1950

2. Print J2000 coordinates in degrees for two B1950 positions
skycoor 09:51:36.102 +69:14:41.51 B1950 09:50:46.961 +69:18:00.96 B1950
148.92329 69.00783 J2000
148.72186 69.06375 J2000

3. Print Galactic coordinates to 6 decimal places instead of the default 5 for two J2000 positions
skycoor -g -n 6 9:55:41.600 +69:00:27.99 J2000 9:54:53.258 +69:03:49.30 J2000
142.144474 40.943450 galactic
142.138707 40.852337 galactic

4. Print J2000 coordinates For two galactic positions
skycoor -j 142.144474 40.943450 galactic 142.138707 40.852337 galactic
09:55:41.600 +69:00:27.99 J2000
09:54:53.258 +69:03:49.30 J2000

5. Find distance in arcseconds between two sky positions
skycoor -vr 9:55:41.600 +69:00:27.99 9:54:53.258 +69:03:49.30
SKYCOOR 3.5, 22 August 2003, Doug Mink (dmink@cfa.harvard.edu)
ra1, dec1: 09:55:41.600 +69:00:27.99
ra2, dec2: 09:54:53.258 +69:03:49.30
Distance is 328.383 arcsec
dRA = -259.44108 arcsec, dDec = 201.31000 arcsec

skycoor -r 9:55:41.600 +69:00:27.99 9:54:53.258 +69:03:49.30
328.383

Last updated 10 November 2009 by Doug Mink

Telescope Data Center