Seyfert galaxy
C31026
concept
A Seyfert galaxy is a type of spiral or irregular galaxy with an extremely bright, compact nucleus powered by a supermassive black hole actively accreting matter and emitting strong radiation across the electromagnetic spectrum.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Seyfert galaxy canonical | 10 |
| active galactic nucleus | 4 |
| Messier-like galaxy | 2 |
| Seyfert 1 galaxy | 1 |
| Seyfert type 1 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: Seyfert galaxy
Generated description
A Seyfert galaxy is a type of spiral or irregular galaxy with an extremely bright, compact nucleus powered by a supermassive black hole actively accreting matter and emitting strong radiation across the electromagnetic spectrum.
Instances (14)
| Instance | Via concept surface |
|---|---|
|
NGC 7319
linked to:
NGC 7319 is a barred spiral galaxy
|
— |
| NGC 7319 | — |
| NGC 4725 | — |
| NGC 1566 | active galactic nucleus |
| NGC 4388 | — |
| NGC 4579 | — |
| NGC 4639 | — |
| NGC 4501 | Messier-like galaxy |
| 3C 84 | active galactic nucleus |
|
BL Lacertae
linked to:
Lacerta
|
active galactic nucleus |
| Messier 77 | — |
| NGC 7314 | — |
| NGC 7172 | — |
|
Quasi-Stellar Object
linked to:
Quasi-Stellar Objects
|
active galactic nucleus |