How can a planetary nebula be identified? Select the two correct answers.(1 point) Responses diffuse edges diffuse edges central star remnant central star remnant dark area dark area spherical shape
The correct answers are:
1. Diffuse edges
2. Spherical shape
To identify a planetary nebula, you can look for the following characteristics:
1. Diffuse edges: Planetary nebulae often have a fuzzy, diffuse appearance around their edges. This is caused by the expanding gas and dust expelled by the dying star.
2. Central star remnant: Planetary nebulae are formed when a low to intermediate mass star reaches the end of its life and sheds its outer layers. At the center of the nebula, you may be able to see the remnant of the star, which is usually a white dwarf.
Therefore, the correct answers are: diffuse edges and central star remnant.
The two correct answers to identify a planetary nebula are:
1. Diffuse edges - Planetary nebulae often have a fuzzy or diffuse appearance at their outer edges.
2. Central star remnant - A planetary nebula is formed when a dying star sheds its outer layers, revealing a dense, hot core known as a central star remnant.