double star
柯林斯詞典
1. N two stars, appearing close together when viewed through a telescope; either physically associated (binary star) or not associated (optical double star) 雙星→see also binary star ,optical double star
返回 double star
1. N two stars, appearing close together when viewed through a telescope; either physically associated (binary star) or not associated (optical double star) 雙星→see also binary star ,optical double star