alargeaggregationofgalaxies, approximately 150 to 350 millionlight-yearsaway, whosegravitationalpullmightaccountfortheunexpectedmotionsofmanygalaxies, includingourown
1.
巨引源
天文学名词词汇二... ... gravitational micro-lensing 微引力透镜效应 great attractor巨引源 Great Dark Spot 大暗斑 ...