zōng / ǎi / xīng / shì / yī / zhǒng / zhì / liàng / jiè / yú / xíng / xīng / hé / héng / xīng / zhī / jiān / de / tiān / tǐ棕矮星是一种质量介于行星和恒星之间的天体。A brown dwarf is a celestial body with mass between that of a planet and a star.