Oddly, Megastar shows the data source as Str-ESO, which is the abbreviation for the Stausberg-ESO Catalogue of Galactic Planetary Nebulae, and in this catalog it's simply listed as a PN (no mention or references as a SNR).
Oddly, Megastar shows the data source as Str-ESO, which is the abbreviation for the Stausberg-ESO Catalogue of Galactic Planetary Nebulae, and in this catalog it's simply listed as a PN (no mention or references as a SNR).
Steve
24" f/3.7 Starstructure
18" f/4.3 Starmaster
Adventures in Deep Space
Contributing Editor, Sky & Tel