恒こう星せい天てん文もん学がく

noun

stellar astronomy

The branch of astronomy that studies stars, their properties, and their evolution.

• 恒こう星せい天てん文もん学がくは、星ほしの一いっ生しょうを研けん究きゅうする分ぶん野やだ。

  Stellar astronomy is a field that studies the life cycle of stars.