How are planetary nebulae detected?

1 Answer
Oct 16, 2016

Answer:

With a telescope

Explanation:

When a star dies, planetary nebulae are formed as ring of gas and dust around it. So, one just needs a strong telescope to spot planetary nebula.

it was that simple... there is no need to "detect" nebulae as it can be seen through a telescope or through the camera of a satellite!