90482 Orcus Etruscan equivalent of the Roman Pluto, and later became an alternate name for Pluto. The surface of Orcus is relatively bright with albedo reaching 23%, grey in color and water-rich. The ice is predominantly in crystalline form, which may be related to past cryovolcanic activity. Other compounds like methane or ammonia may also be present. The existence of a satellite allowed astronomers to determine the mass of the system, which is approximately equal to that of the Saturnian moon Tethys. The ratio of masses of Orcus and Vanth is uncertain, possibly anywhere from 1:33 to 1:12. The diameter of Orcus
Chinese names for the God of Abrahamic religions composed by Lü Dongbin, the Christian God is denominated by the term "Tiānzhǔ" (天主, literally, "Lord of Heaven"), 800 years before Matteo Ricci and his companions. Islam has enjoyed a long history in China. For Chinese Muslims, the principal term for God is also "Zhēnzhǔ" (真主) but transliterations of the Arabic "Allâh" also exist as "Ālā", and as "Ānlā"="Ān" "Peace"+"Lā" "Help" (阿拉 and 安拉). The term "Húdà" (胡大), from Persian "khudai", for God, is seen more often in north-western China. The earliest documented Chinese Roman Catholic church was founded in China in about 1289. The Roman Catholic Church historically favored