<p>The sun's density is 1 gm/cc at approximately 50% of the way down towards the core. if radius of Sun is R then at R/2 the density will be that of water. </p>

<p><a href="https://astronomy.stackexchange.com/questions/32729/at-what-depth-below-the-suns-surface-does-the-density-reach-that-of-water/32733#comment60429_32729">@astrosnapper's comment</a> links to <a href="https://physics.stackexchange.com/a/201239/83380">this answer</a> in Physics SE. A reverse image search of that unsourced graphic leads to </p>

<ul>
<li>Thesis: <a href="https://www.mps.mpg.de/phd/theses/multi-spacecraft-analysis-of-the-solar-coronal-plasma" rel="noreferrer">Multi-spacecraft analysisof the solar coronal plasma</a></li>
<li>NASA: <a href="https://solarscience.msfc.nasa.gov/interior.shtml" rel="noreferrer">The Solar Interior</a></li>
<li><a href="https://cellcode.us/quotes/density-graph-sun-profile.html" rel="noreferrer">Whatever this is</a> shown below</li>
<li>the link in that image <a href="http://www.sns.ias.edu/~jnb/SNdata/Export/BP2004/bp2004stdmodel.dat" rel="noreferrer">http://www.sns.ias.edu/~jnb/SNdata/Export/BP2004/bp2004stdmodel.dat</a> <strong>provides some raw data</strong></li>
<li>the reference in that image is standard solar model BP2004 J. N. Bahcall and M. H. Pinsonneault, Phys. Rev. Lett. 92 (2004) 121301 <a href="https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.92.121301" rel="noreferrer">What do we (not) know theoretically about solar neutrino fluxes?</a> (also in <a href="https://arxiv.org/abs/astro-ph/0402114" rel="noreferrer">ArXiv</a>)</li>
</ul>

<p><img src="https://i.sstatic.net/NRIm8.png" alt="standard solar model BP2004 J. N. Bahcall and M. H. Pinsonneault, Phys. Rev. Lett. 92 (2004) 121301"></p>

CC BY-SA 4.0
2019-07-20T01:43:14.650Z
@uhoh Your answer beat mine by 2 minutes.  i should be the one deleting an answer. Not you.
Natsfan
CC BY-SA 4.0
2019-07-20T01:44:28.907Z
If you want to add your answer back i'll delete mine.
Natsfan
CC BY-SA 4.0
2019-07-20T01:22:59.387Z
2019-07-20T01:52:31.157Z
2019-07-20T01:52:31.157Z
Natsfan
<p>I'd like to write a short supplementary answer to <a href="https://space.stackexchange.com/q/12293/12102">A probe floating in Sun's surface</a> but in order to do so I need to know at <em>roughly</em> what depth relative to the Sun's surface the mass density reaches 1 g/cm^3.</p>

<p>At the bottom of the photosphere the density seems to be either 1E-06 or 1E-09 g/cm^3 as discussed in the question <a href="https://astronomy.stackexchange.com/q/32727/7982">What is the density profile within the Sun's photosphere?</a> but how deep do you have to go below that to reach 1 g/cm^3?</p>

CC BY-SA 4.0
2019-07-19T23:40:03.527Z
companion question: [What is the density profile within the Sun's photosphere? Which one of these is wrong?](https://astronomy.stackexchange.com/q/32727/7982)
uhoh
CC BY-SA 4.0
2019-07-20T01:02:28.253Z
Answered in https://physics.stackexchange.com/questions/201235/density-of-the-sun I think
astrosnapper
<the-sun><stellar-atmospheres><photosphere>
At what depth below the Sun's surface does the density reach that of water?
uhoh
# At what depth below the Sun's surface does the density reach that of water?

(Asked by: username_0 on 2019-07-19)

I'd like to write a short supplementary answer to [A probe floating in Sun's surface](https://space.stackexchange.com/q/12293/12102) but in order to do so I need to know at *roughly* what depth relative to the Sun's surface the mass density reaches 1 g/cm^3.

At the bottom of the photosphere the density seems to be either 1E-06 or 1E-09 g/cm^3 as discussed in the question [What is the density profile within the Sun's photosphere?](https://astronomy.stackexchange.com/q/32727/7982) but how deep do you have to go below that to reach 1 g/cm^3?

**Tags:** the-sun, stellar-atmospheres, photosphere
> **Comments:**
> **username_0**: companion question: [What is the density profile within the Sun's photosphere? Which one of these is wrong?](https://astronomy.stackexchange.com/q/32727/7982)  
> **username_1**: Answered in https://physics.stackexchange.com/questions/201235/density-of-the-sun I think  

---

## 1 answers

### Answer by username_2 on 2019-07-20. Score: 9 | Accepted answer

The sun's density is 1 gm/cc at approximately 50% of the way down towards the core. if radius of Sun is R then at R/2 the density will be that of water.

[@astrosnapper's comment](https://astronomy.stackexchange.com/questions/32729/at-what-depth-below-the-suns-surface-does-the-density-reach-that-of-water/32733#comment60429_32729) links to [this answer](https://physics.stackexchange.com/a/201239/83380) in Physics SE. A reverse image search of that unsourced graphic leads to

* Thesis: [Multi-spacecraft analysisof the solar coronal plasma](https://www.mps.mpg.de/phd/theses/multi-spacecraft-analysis-of-the-solar-coronal-plasma)
* NASA: [The Solar Interior](https://solarscience.msfc.nasa.gov/interior.shtml)
* [Whatever this is](https://cellcode.us/quotes/density-graph-sun-profile.html) shown below
* the link in that image <http://www.sns.ias.edu/~jnb/SNdata/Export/BP2004/bp2004stdmodel.dat> **provides some raw data**
* the reference in that image is standard solar model BP2004 J. N. Bahcall and M. H. Pinsonneault, Phys. Rev. Lett. 92 (2004) 121301 [What do we (not) know theoretically about solar neutrino fluxes?](https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.92.121301) (also in [ArXiv](https://arxiv.org/abs/astro-ph/0402114))

![standard solar model BP2004 J. N. Bahcall and M. H. Pinsonneault, Phys. Rev. Lett. 92 (2004) 121301](https://i.sstatic.net/NRIm8.png)

> **Comments:**
> **username_2**: @uhoh Your answer beat mine by 2 minutes.  i should be the one deleting an answer. Not you.  
> **username_2**: If you want to add your answer back i'll delete mine.  

---

