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THE THREE GRACELESS - Rhea, Tethys, Dione

瑞亚,迪奥和特提斯是土星的主要卫星。

三者没有表现出很大的差异。它们具有灰白色的颜色, 很多的陨石坑等。

MEADE 14” LX200 Ritchey-Cretien Telescope on Equatorial mount and SBIG STL4020 single shot color CCD Camera. Exposure time: 0.5 seconds in high resolution. Processing done in CCDops, Maxim DL4 and Adobe Photoshop CS

 

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