  Fast cadence time resolved spectra taken at the CTIO-4m telescope with the
RC-spectrograph during 2 consecutive nights revealed a long term modulation of
the binary radial velocity. Chandra hard X-ray spectra taken with the HETGS
instrument showed features typically observed in magnetic white dwarfs (WD).
Here, we present the new data and suggest that CP Pup is possibly a long
orbital period intermediate polar.
