Fried Egg Nebula's yellow hypergiant

[steorra]

It turns out that the Fried Egg Nebula (IRAS 17163-3907) surrounds a yellow hypergiant star. The star itself has about 20 times the Sun's mass, and its radius is almost as much as the radius of Jupiter's orbit. The nebula surrounding it has a radius of about 10,000 AU. (For a different solar system comparison, that's about 10 times Sedna's aphelion distance.)

Here's another article.