skycoor - Convert coordinates
skycoor [-bdgjv] [-n ndec] ra1 dec1 sys1 ... ran decn sysn
or
skycoor [-vbjg] [-n ndec] @listfile
skycoor converts coordinates between the J2000, B1950, and
galactic coordinate systems, rounding to a specified number of decimal
places and printing in degrees or hh:mm:ss.sss dd:mm:ss.sss. Input
coordinates may also be in either format, and the system (J2000, B1950, or
galactic) may be in upper or lower case. No spaces are allowed within the
individual coordinates
- -b
- B1950 (FK4) output
- -d
- RA and Dec output in degrees
- -e
- Ecliptic longitude and latitude output
- -g
- Galactic longitude and latitude output
- -i r|d|
- Input units (r=radians, d=degrees, else hh:mm:sss dd:mm:sss)
- -j
- J2000 (FK5) output
- -n <num>
- Number of decimal places in output RA seconds
- -o <num>
- Offset coordinates by this many arcseconds
- -p
- RA and Dec proper motion in milliarcseconds/year
- -q
- Output system, including equinox
- -r <RA> <Dec>
<RA> <Dec>
- Angular separation between two RA, Dec pairs
- -s
- Output ra= dec= epoch= radecsys= for sethead
- -v
- Print more intermediate information
- -w
- Convert RA, Dec equatorial coordinates to x,y,z
- -x
- Convert x,y,z equatorial coordinates to RA, Dec
- -y <epoch>
- Epoch of coordinates in years
Jessica Mink, SAO (jmink@cfa.harvard.edu)