Stars/Os/Quiz

O stars is a lecture about an entity, source, and/or object observed using radiation astronomy that is classified as an O-type star.

You are free to take this quiz based on O stars. Once you've read and studied it, the links contained within, listed under See also, External links and the {{stars resources}} template, you should have adequate background to score 100 %.

Enjoy learning by doing!

Quiz

Hypotheses

Stars that emit light do so because they are receiving electron irradiation.

External links

	luminosity
	size
	apparent mass
	temperature
	spectral lines
	composition

	can be a spectroscopic binary
	the hottest stars
	can be a high-velocity star
	peak wavelength in the gamma-ray range
	orange color.

	a blue supergiant
	an LBV
	a red supergiant
	an early W-R
	a WN

v t e Stars resources
Activities	Analytical astronomy/Laboratory Astrognosy/Laboratory Activities/Astronomy Laboratories/Astronomy Becoming an observer Binary stars and extrasolar planets Cassiopeia and Ursa Major Cosmogony laboratory Cratering laboratory Distance to the Moon Electric orbits Electron beam heating/Laboratory Empirical radiation astronomy/Laboratory Galaxies/Laboratory Intergalactic medium/Laboratory International Year of Astronomy Locating the Sun Neutrinos from the Sun Polar reversals Spectrum of Vega Standard candles/Laboratory Stellarium X-ray classification of a star
Articles	Globulars in M31 Microquasar Skygazing Solar System and Stellar Astronomy Spectral analysis of stars Stargazing The visible sky
Categories	Astronomy laboratories Astrophysics Astrophysics resources Atmospheric sciences Aurora images Betelgeuse images Coronal cloud images Cosmology Galactic astronomy Category:Galaxies Galaxy images Milky Way images Plasma images Solar System Solar system images Star-forming regions Stars images Sun images Superluminal images Supernova Images Vega images
Courses	Introduction to astrophysics Introduction to Astrochemistry Radiation astronomy/Courses Principles of radiation astronomy Principles of radiation astronomy/Syllabus Principles of radiation astronomy/Syllabus/Fall Principles of radiation astronomy/Syllabus/Spring Solar astronomy Solar System Stars/Courses X-ray astronomy
Glossaries	Cosmic View: Glossary of Terms
Lectures	Active galactic nuclei astronomy Astrophysics Auroras Betelgeuse Binaries Blue stars Coronal clouds Cosmic radiation astronomy Cosmogony Cyan stars Dwarf stars Flare stars Galactic evolution Galaxies Galaxy astronomy Galaxy cluster astronomy Gamma ray stars Gaseous-object astronomy Giant stars Green stars Heliocentric astronomy Heliognosy Heliogony Heliography Heliology Heliometry Heliophysics Helioseismology Heliospheres High-velocity galaxy astronomy Hypergiant stars Hypervelocity stellar astronomy Infrared stars Intergalactic medium Interstellar medium Lightning astronomy Magnetohydrodynamics Main-sequence stars Meteor astronomy Meteor radiation Milky Way Nova-like stars Novas Nucleosynthesis Oort cloud astronomy Orange stars Plasma-meteor astronomy Plasma-object astronomy Quasars Radiative dynamo Red stars Scattered disk astronomy Sirius Solar astronomy Solar binary Solar systems Spiral galaxies Standard candle astronomy Standard solar models Star fission Star-forming region Stars Stellar active regions Stellar astronomy Stellar radiation astronomy Stellar evolution Stellar science Stellar surface fusion Sun as an X-ray source Sun Sun-synchronous astronomy Supergiant stars Superluminal astronomy Supernovas Supernova X-rays Ultraviolet stars Variable stars Vega Violet stars Wanderers X-ray classification of stars X-ray stars Yellow stars
Lessons	Astronomy/Lessons First blue source in Andromeda First blue source in Boötes First blue source in Columba First blue source in Lynx First blue source in Sextans First cosmic-ray source in Coma Berenices First cosmic-ray source in Lyra First cosmic-ray source in Scorpius First cosmic-ray source in Taurus First cyan source in Antlia First cyan source in Caelum First cyan source in Corona Australis First cyan source in Mensa First cyan source in Telescopium First electron source in Apus First electron source in Corona Borealis First electron source in Microscopium First electron source in Triangulum First gamma-ray source in Aquarius First gamma-ray source in Aquarius First gamma-ray source in Corvus First gamma-ray source in Monoceros First gamma-ray source in Scutum First gamma-ray source in Triangulum Australe First green source in Crater First green source in Musca First green source in Tucana First infrared source in Ara First infrared source in Crux First infrared source in Norma First infrared source in Ursa Major First meteor source in Aries First meteor source in Cygnus First meteor source in Octans First meteor source in Ursa Minor First microwave source in Canis Major First microwave source in Cepheus First microwave source in Hercules First microwave source in Piscis Austrinus First muon source in Auriga First muon source in Delphinus First muon source in Ophiuchus First muon source in Vela First neutrino source in Boötes First neutrino source in Dorado First neutrino source in Orion First neutrino source in Virgo First neutron source in Caelum First neutron source in Draco First neutron source in Pavo First neutron source in Volans First optical source in Camelopardalis First optical source in Equuleus First optical source in Pegasus First optical source in Vulpecula First orange source in Cancer First orange source in Eridanus First orange source in Perseus First positron source in Cancer First positron source in Fornax First positron source in Phoenix First proton source in Canes Venatici First proton source in Gemini First proton source in Pictor First radio source in Canis Minor First radio source in Grus First radio source in Pisces First red source in Canis Major First red source in Horologium First red source in Puppis First source in Capricornus First source in Hydra First source in Pyxis First submillimeter source in Carina First submillimeter source in Hydrus First submillimeter source in Reticulum First superluminal source in Cassiopeia First superluminal source in Indus First superluminal source in Sagitta First ultraviolet source in Centaurus First ultraviolet source in Lacerta First ultraviolet source in Sagittarius First violet source in Cepheus First violet source in Leo First violet source in Sculptor First visual source in Cetus First visual source in Leo Minor First visual source in Scutum First X-ray source in Andromeda First X-ray source in Antlia First X-ray source in Apus First X-ray source in Aquarius First X-ray source in Centaurus First X-ray source in Chamaeleon First X-ray source in Lepus First X-ray source in Serpens Caput First yellow source in Aquila First yellow source in Circinus First yellow source in Lupus First yellow source in Serpens Cauda Radio astronomy/Lessons X-ray astronomy/Lessons
Lists	Asteroid Surveys
Portals	Astrophysics Cosmology General relativity Geophysics Radiation astronomy Special relativity
Problem sets	Angular momentum and energy Column densities Cosmic circuits Energy phantoms Furlongs per fortnight Lenses and focal length Neutrino emissions Planck's equation Spectrographs Star jumping Synchrotron radiation Telescopes and cameras
Projects	Neutrinos from the Sun Stellar fission as a source of binary stars The Sun as a binary star X-ray classification of stars
Quizzes	Auroras/Quiz Betelgeuse/Quiz Coronal cloud/Quiz Galaxies/Quiz Gaseous-object astronomy/Quiz Heliocentric astronomy/Quiz Heliognosy/Quiz Heliogony/Quiz Heliography/Quiz Heliology/Quiz Heliometry/Quiz Heliophysics/Quiz Heliospheres/Quiz Interstellar medium/Quiz Magnetohydrodynamics/Quiz Meteor astronomy/Quiz Meteor radiation/Quiz Milky Way/Quiz Nova-like stars/Quiz Nucleosynthesis/Quiz Oort clouds/Quiz Plasma-object astronomy/Quiz Principles of radiation astronomy/Hourly 1 Principles of radiation astronomy/Hourly 2 Principles of radiation astronomy/Hourly 3 Principles of radiation astronomy/Midterm quiz Principles of radiation astronomy/Final quiz Radiation detectors/Quiz Radiative dynamo/Quiz Scattered discs/Quiz Serpens X-1/Quiz Solar astronomy/Quiz Solar binary/Quiz Spiral galaxies/Quiz Standard solar model/Quiz Star fission/Quiz Star-forming region/Quiz Stars/Quiz Stellar active region/Quiz Stellar astronomy/Quiz Stellar science/Quiz Stellar surface fusion/Quiz Sun as an X-ray source/Quiz Sun/Quiz Sun-synchronous astronomy/Quiz Superluminal astronomy/Quiz Supernovas/Quiz Supernova X-rays/Quiz Vega/Quiz Vela X-1/Quiz X-ray classification of stars/Quiz

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