Planet Name(s) Position / System / Sector Local Day / Local Year Ecology Sentient Species Other Species Oasis Rocky Human Obica / Sullust / Sullustan? Obinipor / Obinipor /  .  .  .  . Obroa-Skai / Obroa-Skai / 26 std hrs / 456 local days Frozen expanses Obroans Humans Odik II Oetrago Ogem Ogemite Ogoth Tiir Ohann 2nd / Tatoo / Arkanis Gas giant None None Ohma-D’un Satellite / Naboo / Aquatic Oko E Temperate Olabria Trichoid Olanji / / Hapes Cluster Human Oligtaz Omar / Omar / Omman Ompersan  .  .  .  .  . Omwat  . Temperate Omwati Onderon / Onderon / Temperate Human Dxun Beast, Dxun Devourer Ookbat Cavernous Oor VII Oorn Tchis Human Oovo Gas giant Oovi IV Satellite / Oovo / Barren rock Ord Biniir Ord Dorlass / / Rayter Temperate Ord Grovner Ord Mantell Temperate Savrip Ord Mirit / Mirit / Ord Pardron / Ord Pardron / Dufilvian? Human Ord Sabaok / / Core Worlds Temperate Human Ord Segra / / Doldur Ord Traga Ord Trasi Ord Wylan Ordnandell Orellon II / Bastooine / Varied Kentra Human Orflon Asteroid / / Frozen wastes Human Orin / Bespin / Barren None None Orinackra Orinda Orion IV Orooturoo Orron III / / Corporate Temperate Human Orto / Orto / 24 std hrs / 589 local days Cold Ortolan Oseon 2795 Asteroid / Oseon / Rocky wastes None None Oseon 5792 Asteroid / Oseon / Rocky wastes None None Oseon 6845 Asteroid / Oseon / Rocky wastes None None Oshetti IV 4th / / Osirrag / Osirrag / Elrood Varied Human Oslumpex V / / Corporate? Human? Ossel II Swamp Ossan Cucul Ossus / Adega / Auril Temperate Human Ota Frozen wastes Snogar Human Otranto Ovrax IV