parsecsCOCA⁸⁸⁹⁶⁰BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 abbr.宇航研究与空间科学实验计划原型parsec的复数 He and his colleagues have taken a close look at another exoplanet: WASP12b, a gas giant267 parsecs from Earth, which was discovered in2009. 他和他的同事仔细观测了另一个系外行星： WASP12b，一个距地球267秒差距的气体巨星，它于2009年被发现。 yeeyan