恒星

1. Origins, structure, and basic meaning

• Structure: 恒星, read こうせい, is the astronomical term for a star that produces its own light.
• Basic usage: It is used when discussing a star's properties or locating a bright star through a telescope.

2. Common pitfalls and similar expressions

• Contrast with 惑星
  • A 恒星 produces its own light. It differs from a planet, 惑星, which orbits a star and is seen by reflected light.