Meanings
nounblue hook star (plural blue hook stars)
plural blue hook stars
- astronomya type of helium-burning blue giant star that is hotter than the average star in this stage of their life, due to having a more massive helium core
Origin
From their location on the blue horizontal branch portion of the extreme horizontal branch part of the horizontal branch of stellar evolution, hooking upwards when plotted on an H-R diagram.
Full word history & related roots →Cite this entry
APA
blue hook star. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/blue%20hook%20star
MLA
“blue hook star.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blue%20hook%20star. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “blue hook star,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/blue%20hook%20star.
Source: blue hook star on Wiktionary, CC BY-SA 4.0.