Question

How are dwarf galaxies designated?

А.prefixed with the letter "d"
B. prefixed with the letter "D"
C.suffixed with the letter "d"
D.suffixed with the letter "D"

Answer 1

Dwarf galaxies are designated by being suffixed with the letter "d."

Step-by-step explanation:

Dwarf galaxies are designated by being suffixed with the letter "d." Therefore, the correct answer is D. For example, a dwarf galaxy might be designated as NGC 205d, where NGC 205 is the main designation and the "d" indicates that it is a dwarf galaxy.