Cepheid Distance Ladder ·
How We Measure the Universe
un
seel
.com · parallax → Cepheids → type Ia · reaching the far universe
Period
—
Distance
—
Rung
—
Cepheid star
Period-luminosity
Parallax
Type Ia supernova
Ladder rungs
▶ Play
←
→
🔇 Unmute
Reset
Un
seel
.com · Cepheid Distance Ladder