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Improved expression, in particular to address the confusion in one of the comments.
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We know that with the passage of time, hydrogen inside (near or at the core) a star is converted to helium and other heavy elements via fusion. We can then deduce that the old sun contains heavier elements in comparison to the new one. IsDoes that mean that the mass of the old sun is more than the new sun?

We know that with the passage of time, hydrogen inside (near or at the core) a star is converted to helium and other heavy elements via fusion. We can then deduce that the old sun contains heavier elements in comparison to new one. Is that mean mass of the old sun is more than the new sun?

We know that with the passage of time, hydrogen inside (near or at the core) a star is converted to helium and other heavy elements via fusion. We can then deduce that the old sun contains heavier elements in comparison to the new one. Does that mean that the mass of the old sun is more than the new sun?

Fission -> fusion.
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HDE 226868
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We know that with the passage of time, Hydrogenhydrogen inside  (near or at centerthe core) a star convertsis converted to helium and other heavy elements via fission, then wefusion. We can then deduce that the old sun contains heavier elements in comparison to new one,. Is that mean mass of the old sun is more than the new sun?

We know that with the passage of time, Hydrogen inside(near or at center) a star converts to helium and other heavy elements via fission, then we can deduce that old sun contains heavier elements in comparison to new one, Is that mean mass of the old sun is more than the new sun?

We know that with the passage of time, hydrogen inside  (near or at the core) a star is converted to helium and other heavy elements via fusion. We can then deduce that the old sun contains heavier elements in comparison to new one. Is that mean mass of the old sun is more than the new sun?

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Old star vs New star

We know that with the passage of time, Hydrogen inside(near or at center) a star converts to helium and other heavy elements via fission, then we can deduce that old sun contains heavier elements in comparison to new one, Is that mean mass of the old sun is more than the new sun?