redshift

Astronomy.redshift.redshift(v_recess=None, dop_fac=None)

Redshift corresponding to a recessional velocity

:param v_recess : recessional velocity in km/s :type v_recess : float

:param dop_fac : f/f_0 or lambda_0/lambda :type dop_fac : float

Returns

redshift (float)