TRGB

English

Noun

TRGB (countable and uncountable, plural TRGBs)

1. (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.
2. (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