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
Names of God in Judaism the Elohist) are named for their usual names for God (YHWH and Elohim respectively). The seven names of God that, once written, cannot be erased because of their holiness are the Tetragrammaton, El, Elohim, Eloah, Elohai, El Shaddai, and Tzevaot. In addition, the name Jah—because it forms part of the Tetragrammaton—is similarly protected. Rabbi Jose considered "Tzevaot" a common name and Rabbi Ishmael that "Elohim" was. All other names, such as "Merciful", "Gracious" and "Faithful", merely represent attributes that are also common to human beings. The name of God used most often in the Hebrew Bible is YHWH (), also