Off Topic — HabitableZone

Off Topic » in reply to Some solar links of interest

Believe the EVIDENCE, which says that the Sun
David F Mayer — (archived)

is made of hydrogen (about 3/4), helium (about 1/4), with less than 1% other stuff, including iron. The presence of solid iron is impossible at the temperature & pressure of the photosphere. Furthermore, the density of iron being far higher than that of hydrogen & helium, solid iron (if it could exist) would fall into the center of the Sun in nothing flat, unless it were underlain by even denser matter. The low density of the Sun precludes this possibility.
http://imagine.gsfc.nasa.gov/docs/science/know_l1/sun.html
The photosphere is slightly different from one place on the Sun to another, but in general is has a pressure about a few hundredths of the sea-level pressure on Earth, a density of about a ten-thousandth of the Earth's sea-level atmospheric density, and a temperature in the range 4500-6000 Kelvin.

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