Quote:
Originally Posted by atalas
Great work Steven.....any idea why astronomers aren't sure If It's a PN?
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Unfortunately Louie my information on astronomers doubting that the object is a planetary is based on 1997 information.
The brighter lobes were mistaken as two separate HII regions.
Today there is no doubt the object is a planetary courtesy of deeper imaging revealing the regions are part of an overall structure.
http://cdsarc.u-strasbg.fr/viz-bin/v...7A&G258.5-01.3 (Thanks to Sakib Rasool for pointing this out.)
Clear skies
Steven