noun
stellar astronomy
The branch of astronomy that studies stars, their properties, and their evolution.
恒星天文学は、星の一生を研究する分野だ。
Stellar astronomy is a field that studies the life cycle of stars.
天文学 is the general term for astronomy, while 恒星天文学 specifically focuses on stars.
Compound of 恒星 (fixed star) and 天文学 (astronomy).