cD galaxy
C40651
concept
A cD galaxy is a supergiant elliptical galaxy, typically found at the centers of galaxy clusters, characterized by an extended diffuse stellar envelope and enormous size and luminosity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| cD galaxy canonical | 1 |
| central dominant galaxy | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: cD galaxy
Generated description
A cD galaxy is a supergiant elliptical galaxy, typically found at the centers of galaxy clusters, characterized by an extended diffuse stellar envelope and enormous size and luminosity.
Instances (2)
| Instance | Via concept surface |
|---|---|
| Messier 87 | — |
| NGC 4696 | central dominant galaxy |