A bright blue star which, when plotted on the Hertzsprung–Russell diagram, lies close to the main sequence but beyond the turn-off point, as if its evolution had been delayed.
Origin
1950s; earliest use found in Astrophysical Journal.
Definition of blue straggler in US English:
blue straggler
noun
Astronomy
A bright blue star which, when plotted on the Hertzsprung–Russell diagram, lies close to the main sequence but beyond the turn-off point, as if its evolution had been delayed.
Origin
1950s; earliest use found in Astrophysical Journal.