also: ほしづくよ
noun
starry night
A poetic or literary term for a clear night sky filled with stars. Often used in classical poetry and lyrical descriptions.
星月夜の下、二人は静かに歩いた。
Under the starry night, the two walked quietly.
星空 is the common, everyday word for 'starry sky'. 星月夜 is more poetic and less frequently used in modern conversation.
Compound of 星 (hoshi, 'star'), 月 (tsuki, 'moon'), and 夜 (yo, 'night'). The reading ほしづきよ reflects rendaku voicing of つき to づき. The alternate reading ほしづくよ is a variant.