Name¶
skycoor - Convert coordinates
Synopsis¶
skycoor [-bdgjv] [-n ndec] ra1 dec1 sys1 ... ran decn sysn
or
skycoor [-vbjg] [-n ndec] @listfile
Description¶
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
Options¶
- -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
Author¶
Doug Mink, SAO (dmink@cfa.harvard.edu)