Subgiant Star ·
Hydrogen Shell Ignites
un
seel
.com · post-MS · branch crossing · luminosity climb
Phase
Subgiant
Duration
~10⁹ yr
Track
—
Main sequence
Subgiant branch
Red giant branch
Inert He core
▶ Play
←
→
🔇 Unmute
Reset
Un
seel
.com · Subgiant Star