  We suggest that tidal destruction of Earth-like and icy planets near a white
dwarf (WD) might lead to the formation of one or more low-mass - Earth-like and
lighter - planets in tight orbits around the WD. The formation of the new WD
planetary system starts with a tidal break-up of the parent planet to
planetesimals near the tidal radius of about 1Rsun. Internal stress forces keep
the planetesimal from further tidal break-up when their radius is less than
about 100km. We speculate that the planetesimals then bind together to form new
sub-Earth - daughter-planets at a few solar radii around the WD. More massive
planets that contain hydrogen supply the WD with fresh nuclear fuel to
reincarnate its stellar-giant phase. Some of the hydrogen will be inflated in a
large envelope. The envelope blows a wind to form a nebula that is later (after
the entire envelope is lost) ionized by the hot WD. We term this glowing
ionized nebula that originated from a planet a real planetary nebula (RPN).
This preliminary study of daughter-planets from a planet (DPP) and the RPN
scenarios are of speculative nature. More detail studies must follow to
establish whether the suggested scenarios can indeed take place.
