The authors say we have a pole-on view of a bipolar nebula shaped by the presence of a second star. There are many bipolar nebulae, including well-known ones like the Butterfly Nebula. However ...

ABSTRACT Bipolar, elliptical, and circular planetary nebulae appear to be possessed of differing Galactic scale heights, a feature which is usually assumed to arise from the differing distributions ...

They now recognize it as a bipolar planetary nebula. And you’ll see its double nature through a 12-inch telescope. Crank the magnification up to 250x, and the two disks — the brighter one lies ...

The alignment of planetary nebulae was discovered ten years ago by a Manchester PhD student, Bryan Rees, but has remained unexplained. Planetary nebulae are clouds of gas that are expelled by stars at ...