Abell 33

Abell 33 copy

Abell 33.

A planetary nebula in Hydra.

The ”diamond ring” appearance is caused by a for ground star which is not part of the nebula.

Telescope.  16 inch F4.5 Newtonian.

Camera.  S Big ST 4000 XCM OSC CCD.

Exposure & Time.  21 x 900 sec.  Apr 2013.

Location.  (Wiruna)  Ilford  N.S.W.