Skip to content
World 3 · The Wobbling Star · 11 min · PRO

Mass plus radius gives density

What is it made of?

PRO · Exoplanet Hunter

World 3: The Wobbling Star is part of PRO

The first world of Exoplanet Hunter is free. PRO opens the other 26 lessons in 6 worlds — simulations, quizzes and all.

  • Planets tug back
  • Light that stretches and squeezes
  • Reading the velocity curve
  • How much light does a planet get?
  • Stars come in many sizes
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

Unlock Exoplanet HunterTry the free world
My notes
Only saved in this browserAll my notes →
← Reading the velocity curveHow much light does a planet get? →

Report a mistake

What is wrong?
0 / 2000 · at least 10 characters
Sent along with your report
  • Page
  • About Mass plus radius gives density — Exoplanet Hunter · exoplanets/density
Plus your browser type. Reports go to our support system; see the privacy notice.