pre-main-sequence star
C40696
concept
A pre-main-sequence star is a young, contracting protostellar object that has not yet initiated stable hydrogen fusion in its core and is evolving toward the main sequence.
All labels observed (3)
| Label | Occurrences |
|---|---|
| young star | 6 |
| pre-main-sequence star canonical | 5 |
| intermediate-mass star | 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: pre-main-sequence star
Generated description
A pre-main-sequence star is a young, contracting protostellar object that has not yet initiated stable hydrogen fusion in its core and is evolving toward the main sequence.
Instances (10)
| Instance | Via concept surface |
|---|---|
| R Coronae Australis | — |
| TY Coronae Australis | — |
| BD+30 549 | young star |
| BD+30 540 | young star |
| Herbig Ae/Be stars | — |
| HD 281159 | young star |
| HD 25539 | young star |
| HD 278942 | young star |
|
Shaula
surface form:
Shaula C
|
— |
| Herschel 36 | young star |