Changes

| type            =Planetary nebula

| type            =Planetary nebula

| dimensions      =0.3'/5.8'<ref name=constellation-guide/>

| dimensions      =0.3'/5.8'<ref name=constellation-guide/>

| magnitude      =Apparent Mag: +8.1<ref name=constellation-guide/> Absolute Mag: -0.2<ref>From definition of absolute magnitude, using apparent magnitude and distance given here.</ref>

| magnitude      =Apparent Mag: +8.1<ref name=constellation-guide/><br/>Absolute Mag: -0.2<ref>From definition of absolute magnitude, using apparent magnitude and distance given here.</ref>

| redshift        =-0.000219±0.000003<ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+6543&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id NGC 6543] from simbad.u-strasbg.fr</ref>

| redshift        =-0.000219±0.000003<ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+6543&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id NGC 6543] from simbad.u-strasbg.fr</ref>

| radvelocity    =-65.7±0.9 km/s<ref name=simbad/>

| radvelocity    =-65.7±0.9 km/s<ref name=simbad/>