Discussion Overview
The discussion revolves around the mass loss of the Sun, specifically focusing on the contributions from sunlight and particles ejected by the Sun, such as ions, neutrinos, and coronal mass ejections. Participants explore the implications of these mass loss rates and the potential cumulative effects over time.
Discussion Character
- Exploratory
- Debate/contested
- Technical explanation
Main Points Raised
- Some participants note that the Sun loses approximately 4 billion kg per second due to sunlight, as derived from the equation e = mc².
- Others reference sources indicating that the Sun loses about 1.3-1.9 million tons (1.3-1.9 billion kg) per second due to solar wind, leading to a total mass loss of about 5.3-5.9 billion kg per second when combined with sunlight.
- A participant questions whether solar wind calculations include coronal mass ejections and expresses curiosity about the contribution of neutrinos to the total mass loss.
- There is a discussion about the significance of the mass loss relative to the Sun's total mass, with some suggesting it is minuscule, equating to about 0.05% of its initial mass since formation.
- One participant reflects on the implications of mass ejections and whether they occur uniformly or from specific locations on the Sun, raising questions about the net effect on the Sun's mass.
- Another participant emphasizes the importance of acknowledging contributions in discussions and expresses appreciation for the efforts of others in the thread.
Areas of Agreement / Disagreement
Participants express varying degrees of uncertainty regarding the specifics of solar wind calculations and the inclusion of different types of mass loss. There is no consensus on the total mass loss or the implications of the various components discussed.
Contextual Notes
Participants mention the need for clarification on how solar wind and coronal mass ejections are defined and measured, as well as the potential impact of external mass inputs from asteroids and comets.
Who May Find This Useful
This discussion may be of interest to those studying astrophysics, solar physics, or anyone curious about the dynamics of the Sun and its impact on the solar system.