Confirmation of SBS 1150+599A as an Extremely Metal-poor Planetary Nebula
Confirmation of SBS 1150+599A as an Extremely Metal-poor Planetary Nebula
SBS 1150+599A is a blue stellar object at high Galactic latitude discovered in the Second Byurakan Survey. New high-resolution images of SBS 1150+599A are presented, demonstrating that it is very likely to be an old planetary nebula in the galactic halo, as suggested recently by Tovmassian et al. An Hα …