LMC-N86 = “Lionel Murphy” Supernova = SNR B0456-68.7 = LMC B0455-6843

04 55 49 -68 38 30; Dor
Size 3.5′

25″ (10/17/17 – OzSky): at 244x; this LMC supernova remnant appeared unfiltered as a large, low surface brightness hazy region, just south of a mag 11.8 star. A couple of 14th mag stars appear involved with the haze. The mag 11.8 star forms the eastern vertex of an isosceles triangle with a mag 11.5 star 5.6′ NW and a mag 10 star 6′ SW. There was a weak contrast gain adding a NPB filter, with the most evident section ~1′ diameter [centered 1.2′ S of the mag 11.8 star] and slightly brighter on the east side.

Images in H-alpha, [O III] and [S II] reveal a relatively well defined shell of over 3′ diameter, rich in internal filamentary structure, and a large jetlike stream of filaments extending 2′ further north that appear to break out into the interstellar medium.

N86 is situated along the western rim of the supergiant shell LMC 6.