# Velocity Calculator

Select the input coordinate system (default is equatorial) and equinox if applicable (default is J2000).

Enter the cordinates (in sexagesimal units or decimal degrees).

Examples of input coordinates:

- 09h55m52.7s +69d40m46s
- 09:55:52.7 +69:40:46
- 09 55 52.7 +69 40 46
- 148.969687d 69.679383d

Enter the redshift you wish to correct in velocity units of km/sec, and its corresponding reference frame. Then select the reference frame to which you wish to correct the redshift.

If you wish to use your own apex vector, check the box and enter your coordinate system, coordinates, and velocity, then hit "Go".

More information can be found here.