Cassini’s view of Saturn on April 7, 2015 四月 10, 2015 由 觀察空間 分享此文: Cassini captured this image of Saturn on April 7, 2015 利用其CB2和CL2過濾器. That small bright speck on the left might be Dione, 土星的衛星之一. 信用: NASA / JPL / SSI / @ ObservingSpace View on Flickr Follow on Twitter 分享此文: