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
Alternative names for Northern Ireland ""because the area did not comprise the nine counties of the province. We should demand our three counties [Donegal, Monaghan and Cavan] so that we could call our country Ulster, a name of which we are all proud"." Alternative names for Northern Ireland There are a number of alternative names for Northern Ireland. Northern Ireland consists of six historic counties of Ireland, and remains part of the United Kingdom following the independence of the other twenty-six counties as the Irish Free State in 1922 (now the Republic of Ireland, officially named "Ireland"). In addition to, and sometimes instead of, its