How far from the core is the photosphere/chromosphere?

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Thread starter Andreas C
Start date Jul 6, 2016
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In summary, the distance from the core to the photosphere/chromosphere is typically measured in solar radii and is approximately 500,000 kilometers or 0.7 solar radii on average. However, this distance can vary depending on the size, age, and composition of the star. As a star ages, it expands and its photosphere/chromosphere moves further away from the core due to increased temperatures and instability. This distance can also be affected by external factors such as magnetic fields and interactions with other stars. Different types of stars can have varying distances from the core to the photosphere/chromosphere, with red giants and supergiants having larger photospheres/chromospheres compared to main sequence stars like our Sun.

Jul 6, 2016

Andreas C

Simple question, how far from the core does each layer of the sun's atmosphere start? I couldn't find enough information in google.

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Jul 6, 2016

Beduino

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taken from Here

It's in miles, but it's NASA stuff. Cheers :)

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Last edited by a moderator: May 8, 2017

Jul 6, 2016

Andreas C

Ugh... Miles... Why do they still use miles? Anyway, thanks!

Does anyone know what the pressure of the chromosphere and the photosphere is?

Related to How far from the core is the photosphere/chromosphere?

1. How is the distance from the core to the photosphere/chromosphere measured?

The distance from the core to the photosphere/chromosphere is typically measured in terms of solar radii, with one solar radius being equal to the distance between the center of the Sun and its surface. This measurement is used because it takes into account the varying sizes of different stars and allows for more accurate comparisons.

2. What is the average distance from the core to the photosphere/chromosphere?

The average distance from the core to the photosphere/chromosphere is approximately 500,000 kilometers, or 0.7 solar radii. However, this distance can vary depending on the size, age, and composition of the star.

3. How does the distance from the core to the photosphere/chromosphere change as a star ages?

As a star ages and begins to run out of hydrogen fuel, it will expand and its photosphere/chromosphere will move further away from the core. This is because the outer layers of the star become hotter and more unstable, causing them to expand and form a larger photosphere/chromosphere.

4. Can the distance from the core to the photosphere/chromosphere be affected by external factors?

Yes, the distance from the core to the photosphere/chromosphere can be affected by external factors such as magnetic fields, stellar winds, and interactions with other stars. These factors can cause fluctuations in the size and temperature of the photosphere/chromosphere, which in turn affects its distance from the core.

5. How does the distance from the core to the photosphere/chromosphere differ between different types of stars?

The distance from the core to the photosphere/chromosphere can vary greatly between different types of stars. For example, red giants and supergiants have much larger photospheres/chromospheres compared to main sequence stars like our Sun. This is because they have used up most of their hydrogen fuel and are in a late stage of their evolution, causing them to expand and form larger outer layers.