TRGB
English
Noun
TRGB (countable and uncountable, plural TRGBs)
- (astronomy) Initialism of Tip of the Red Giant Branch; A classification of stars on the Hertzsprung-Russell diagram for all stellar populations or of a given sample set, the end of the plot for stars existing on the red giant branch as it branches off from the main sequence.
- (astronomy) Ellipsis of TRGB star (“a star in this classification”).
Coordinate terms
- AGB
- Cepheid
- Cepheid variable
- distance ladder
- Hertzsprung-Russell
- H-R diagram
- standard candle
- type I supernova
Derived terms
- TRGB population
- TRGB star
Related terms
- giant star
- red giant
- red giant branch
- red giant star
- star
Further reading
- Tip of the red giant branch on Wikipedia.Wikipedia