Planetary Nebula PK 286+11.1

This somewhat large and complex Planetary Nebula PK 286+11.1 of magnitude 12.5 extends to 4x3 arc-min in the constellation Centaurus. PK 286+11.1, also called PN G286.5+11.6 and Longmore 5 is imaged here in RGB, Ha, OIII, and SII, so you can really start to see a bit of structure. I have not seen any other images of this object that do. Also, as a bonus we captured its rarely seen faint halo, as well as multiple background galaxies, at least two of which belong to PGC catalogue.

Longmore 5 planetary nebula was discovered by A. J. Longmore on a UK Schmidt plate in 1976. But it’s extremely faint outer halo in the OIII band was discovered much later by the Galactic Planetary Nebula Halo Survey (GPNHS) team in March 2014.

Imaged in RGBHa on a Planewave CDK 24 at Observatorio El Sauce, Chile. Taken Moravian C5. 24 x 300sec for each R-G-B and 36 x 600 for each Ha-OIII-SII

SWOS Group, Mazlin, Parker, Forman, Magill, Hanson

Annotated versions by Alex Zaytsev

Enjoy, Mark