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[QUOTE]Originally posted by MinutiaeMan: [QB] Okay, more interesting stuff... it seems that in a way, I wasn't wrong in my original argument -- hypergiants are NOT supposed to be plain, simple, larger versions of supergiant stars. Instead, they're a subset of supergiants, more specifically VARIABLE supergiants. Here's a couple of quotes from the introduction of an astrophysics paper I found via Google: [QUOTE]"Cool hypergiants (Ia<sup>+</sup> or Ia0) are a class of supergiant stars with [i]T<sub>eff</sub>[/i] below ~10,000 K. They are physically different from supergiants of luminosity class Ia. The usual Ia<sup>+</sup> designation does not mean that they are always more luminous than the former, but they differ in their spectral properties. [...] rho Cassiopeiae and HR 8752 are the prototype objects of the yellow hypergiants (F-G Ia<sup>+</sup>) They are among the most massive (20-40 M<sub>Sol</sub>) cool stars presently known. [URL=http://lanl.arxiv.org/abs/astro-ph/0108358]Link to source.[/URL][/QUOTE]"There are more things in heaven and earth, Horation, than are dreamt of in your philosophy." How appropriate that they used that quote here, even if Star Trek quoting Shakespeare is such an old cliche? ;) [/QB][/QUOTE]
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