Due to its low surface brightness, it is a very difficult object when observed visually.

In an expanding universe, the surface brightness diminishes with distance.

It is relatively bright at magnitude 8.1, and also has a high surface brightness.

Because of its low surface brightness, low power is required.

Additionally, irregularities in the surface brightness are seen across the face of the shell.

It is a larger planetary with low surface brightness.

This surface brightness is independent of the galaxy's actual distance from us.

Overall, the disc has a very low surface brightness.

Because it is so diffuse, it has a low surface brightness.

It is a beautiful object with a high surface brightness.