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1. jahnu · 1789828933 · focus · HN ↗

   One thing worth noting is our popular notion of what a star seems to be is quite different from what astronomers have.

   One example, Canis Majoris has a radius of about 1420 solar radii. But its mass is roughly 17±8 times the mass of the Sun and therefore an average density of 5.33 to 8.38 mg/m3. “It is over 100.000 times less dense than Earth’s atmosphere at sea level.”

   <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;VY_Canis_Majoris" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;VY_Canis_Majoris

   <a href="https:&#x2F;&#x2F;nineplanets.org&#x2F;vy-canis-majoris&#x2F;" rel="nofollow">https:&#x2F;&#x2F;nineplanets.org&#x2F;vy-canis-majoris&#x2F;

   1. peri-cl · 1789841253 · focus · HN ↗

      These objects (black hole stars) seem to be far larger than that,

      <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quasi-star#Formation_and_properties" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Quasi-star#Formation_and_prope... (Caption: &quot;Size comparison of a hypothetical quasi-star to some of the largest known stars&quot;)

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