little red dot

短语

词形变化

little red dots 复数 little red dots

别名

LRD

释义与例句

n.
  1. 1.

    A type of galaxy found in the distant early universe, appearing as a background small dot in deep surveys in infrared astronomy.

    天文

词源

From little + red + dot. From only being visible beyond the red end of the visible spectrum, being a small and unresolved dot in imaging.

来源：wiktionary