DeHt 5 is an emission nebula in the constellation Cepheus. It is estimated to be 1,300-1,600 light years from Earth. Originally catalogued as a planetary nebula, studies have concluded that it is simply a dense part of the interstellar medium (ISM) that is ionised by a hot white dwarf star. The faint red filaments at the top right hand corner of the image are the supernova remnant called SNR 110.3+11.3.