Abstract
Narrow band imagery and Fabry-Perot interferometry have been performed on the optical counterpart of this remnant. The Hα and [S II] photographs confirm the high [S II]/Hα ratio already found by spectroscopic means in one of the optical filaments. These photographs also show a series of sharp and bright filaments arranged in a crescent-shaped nebulosity; some of these filaments are oriented in the radial direction. The [0 III] photograph reveals the existence of a filament without any Hα counterpart. The kinematical data imply a distance of 6.7 ± 0.6 kpc to this remnant and an expansion velocity of 60 ± 10 km 1 These values imply that the supernova remnant (SNR) is in its radiative phase of evolution and that it has an old age.
