planetary nebula in open cluster
C63327
concept
A planetary nebula in an open cluster is an expanding shell of ionized gas ejected from an aging star that is physically associated with and located within a loosely bound group of relatively young stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| planetary nebula in open cluster canonical | 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: planetary nebula in open cluster
Generated description
A planetary nebula in an open cluster is an expanding shell of ionized gas ejected from an aging star that is physically associated with and located within a loosely bound group of relatively young stars.
Instances (1)
| Instance | Via concept surface |
|---|---|
|
Pyxis
surface form:
NGC 2818
|
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