O star
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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- Nzérékoré
- Nzinga
- 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 stars
- O. Henry
- O. J. Simpson
- O.K. Corral
- O/A
- O/B/O carrier
- O/H
- O/O carrier
- O/S/O carrier
- O2
- O2O
- OA
- OADG
- Oahe Dam
- Oahe Downstream Recreation Area
- Oahu
- Oahu Forest National Wildlife Refuge
- OAI
- oak
- oak and acorns
- oak apple
- Oak Creek
- Oak Forest
- Oak Groves
- Oak Island
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- O Praem
- O ray
- O Rei
- O Rei
- O ring
- 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 shell
- O side chain
- O side chain
- O side chain
- O sign
- O Sjoqvist
- O slash
- O slash
- O slash
- O slash
- O slash
- O soil horizon
- O soil horizon
- O soil horizon
- O star
- O stars
- O stroke
- O stroke
- O stroke
- O stroke
- O tempora! O mores!
- O tempora! O mores!
- O tilde
- O tilde
- O tilde
- O tilde
- O Umlaut
- O Umlaut
- O Umlaut
- O Umlaut
- O with diaeresis (Latin)
- O with diaeresis (Latin)
- O with diaeresis (Latin)
- O with diaeresis (Latin)
- O Zawarciu Umowy
- O"
- O"
- O"
- O"
- O&A
- O&BLI
- O&C
- O&CE
- O&D
- O&E
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