The name ‘Siamese Gemini system’ is also deleted. Those are two galaxies that merge into each other. NASA now only uses the scientific names NGC 4567 and NGC 4568. The space agency is now looking for more offensive and undesirable nicknames in the universe.
Organizations themselves can choose to use names that are easier to remember. For example, the object Barnard 33 is also known as the Horsehead Nebula, because it resembles a horse’s head.