<p>Is the density of a sunspot different by more than a factor of ten compared to the area surrounding the sunspot?</p>

CC BY-SA 4.0
2020-07-21T22:41:01.283Z
No. It just is cooler.
planetmaker
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2020-07-21T23:03:12.337Z
Hmm... both the question [What is the density profile within the Sun's photosphere? Which one of these is wrong?](https://astronomy.stackexchange.com/q/32727/7982) and its answer(s) give a density for the Sun's photosphere of about $3 \times 10^{-7} \text{g/cm}^3$, Your link says "10^{-9} g/cm^3" which is really $1 \times 10^{-9} \text{g/cm}^3$ which is written "1E-9" in "computerese" rather than "10E-09" so I think you've transcribed that incorrectly and it's incorrect to begin with as well!
uhoh
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2020-07-21T23:16:18.327Z
@planetmaker Is a localized plasma that is cooler than the surrounding plasma the same  density?
Bob516
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2020-07-21T23:19:11.913Z
of course the pressure balance applies. Yet in sun spots the magnetic pressure accompanies the gas pressure so that density will not be much different
planetmaker
<density><sunspots><photosphere>
Density of a sunspot compared to the surrounding photosphere?
Bob516
# Density of a sunspot compared to the surrounding photosphere?

(Asked by: username_0 on 2020-07-21)

Is the density of a sunspot different by more than a factor of ten compared to the area surrounding the sunspot?

**Tags:** density, sunspots, photosphere
> **Comments:**
> **username_1**: No. It just is cooler.  
> **username_2**: Hmm... both the question [What is the density profile within the Sun's photosphere? Which one of these is wrong?](https://astronomy.stackexchange.com/q/32727/7982) and its answer(s) give a density for the Sun's photosphere of about $3 \times 10^{-7} \text{g/cm}^3$, Your link says "10^{-9} g/cm^3" which is really $1 \times 10^{-9} \text{g/cm}^3$ which is written "1E-9" in "computerese" rather than "10E-09" so I think you've transcribed that incorrectly and it's incorrect to begin with as well!  
> **username_0**: @planetmaker Is a localized plasma that is cooler than the surrounding plasma the same  density?  
> **username_1**: of course the pressure balance applies. Yet in sun spots the magnetic pressure accompanies the gas pressure so that density will not be much different  

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