O star

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O star [′ō ‚stär]

(astronomy)

A star of spectral type O, a massive, very hot blue star with a surface temperature of at least 35,000 K (63,000°F), and a spectrum in which lines of singly ionized helium are prominent.

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No references found			These objects may represent a brief transitional phase between ordinary massive stars, known as O stars, and Wolf-Rayet stars, which have ejected their outer layers. Big gun: Pistol shines in the infrared by Cowen, Ron / Science News			NZ Nzerekore Nzérékoré Nzula, Albert Thomas O O and M manual O antigen O attenuator O Captain! My Captain! O Come, All Ye Faithful O electron O grade O Henry O indicator O level O Little Town of Bethlehem O network O Nuallaian, Brian O Pioneers! O ray O ring O Salutaris Hostia O scan O scope O shell O star O'Bannon Woods State Park O'Bannon, Presley O'Brian, Patrick O'Brien County O'Brien, Conor Cruise O'Brien, Edna O'Brien, Fitz-James O'Brien, Flann O'Brien, Jeremiah O'Brien, Lawrence O'Brien, William O'Brien, William Smith O'Callaghan, Donald O'Casey, Sean O'Connell, Daniel O'Connell, William O'Connor, Carroll O'Connor, Feargus O'Connor, Feargus Edward O'Connor, Flannery O'Connor, Frank O'Connor, John J. O'Connor, John Joseph O'Connor, Rory O'Connor, Sandra Day			Ó Néill O network O Nuallaian, Brian O O O O Ò ó Ò ó O Pioneers O Pioneers! O Praem O ray O Rei O Rei O ring O ring O ring O RLY? O Salutaris O Salutaris Hostia O saving victim, opening wide O scan O scope O Sensei O shell O side chain O side chain O side chain O sign O soil horizon O soil horizon O star O tempora! O mores! O Zawarciu Umowy O&A O&BLI O&C O&CE O&D O&E O&EP O&F O&G O&GS O&I O&L O&M O&M,MC O&M,N O&MFH O&MFL O&MMC O&MMCR O&MN O&MNR O&MP

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