We present various observations of the bipolar nebula No. 14 from the list of Neckel and Staude (1984): CCD images at 7 different wavelengths, spectroscopy at intermediate resolution between 4800 A and 9500 A, and CCD stellar polarimetry. The centra! star turns out to be a "Trapezium" consisting of four stars of spectral types between B0.5 and A5. The nebular spectrum is that of a low
excited HII region, but in addition it exhibits a strong Ol 8446 line excited by Lyman β fluorescence. This requires a very high optical depth in Hα γ ≥ 1000) in the emitting region, which has been spatially resolved in NS 14. The stellar polarimetry, combined with the surface polarimetry of Scarrott et al. (1986), indicates that the polarization in the nebula can be explained by pure scattering
alone.
All known groups of fireballs contain bodies which may reach the Earths surface as meteorites and are of planetary origin. Since some fireballs have cometary orbits in the Solar System, then comets are probably of planetary origin. The possible explosion
of a large planet is discussed again. This time on the basis of gravitationally decelerated expansion of an originally superdense embryo.