CRAB NEBULA

 

Opaque reconstruction in [OIII] (mean cut), first for a rotation around the N-S axis and then along and perpendicular to the major axis.  These preliminary results are based on spectra at twelve position angles taken with the 182cm telescope + AFOSC of the Padua Observatory at Asiago - Cima Ekar. (spectral resolution = 4000)

The movie size is about 1.1 Mby.

Crab [OIII] movie      avi      gif