Comparison of sizes and effective temperatures of planets, brown dwarfs, and stars.
Displayed are the <a href="https://en.wikipedia.org/wiki/en:Sun" class="extiw" title="w:en:Sun">Sun</a>, the red dwarf star <a href="https://en.wikipedia.org/wiki/en:Gliese_229A" class="extiw" title="w:en:Gliese 229A">Gliese 229A</a>, the young brown dwarf <a href="https://en.wikipedia.org/wiki/en:Teide_1" class="extiw" title="w:en:Teide 1">Teide 1</a>, the old brown dwarf <a href="https://en.wikipedia.org/wiki/en:Gliese_229B" class="extiw" title="w:en:Gliese 229B">Gliese 229B</a>, the very cool brown dwarf <a href="https://en.wikipedia.org/wiki/en:WISE_1828%2B2650" class="extiw" title="w:en:WISE 1828+2650">WISE 1828+2650</a>, and the planet <a href="https://en.wikipedia.org/wiki/en:Jupiter" class="extiw" title="w:en:Jupiter">Jupiter</a>. Graphic after American Scientist/Linda Huff using NASA satellite images (Sun, Jupiter) and NASA artist work (Gliese 229A + B, Teide 1, WISE1828+2650).
MPIA/V. Joergens
CC BY 3.0
First published in "Joergens, Viki, 50 Years of Brown Dwarfs - From Prediction to Discovery to Forefront of Research, Astrophysics and Space Science Library 401, Springer, <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-3-319-01162-2" title="Special:BookSources/978-3-319-01162-2">ISBN 978-3-319-01162-2</a>."