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physical object > naked eye object > naked eye star > Gamma Velorum

Gamma Velorum (HR 3207)
subject			fact

Gamma Velorum	has declination -47 20 12
	has right ascension 8 9 31.9
	has spectral type WC8+O7.5e
	has V magnitude 1.78
	is a part of Vela
	is a part of Vela
	has absolute magnitude Mv = - 5.6
	has distance 400 pc
	has synonym HR 3207
	has B-V magnitude -0.22
	has orbital period 78.5 days
	has definition A triple system (WC8, B1 IV, O9 I) embedded in the Gum Nebula. It is the brightest Wolf-Rayet star in the sky.
	is an instance of WC star
	is an instance of naked eye star
	is an instance of triple star
triple star	has number of stars 3
WC star	has emission line He I, He II, C II, C III or C IV
naked eye star	has been observed for many centuries
	is usually part of asterism
	is a part of celestial sphere
	is a part of Milky Way
	has apparent magnitude brighter than 5
star system	has abundance half the stars in the solar neighborhood are members of star systems
star	has star surface temperature
	has B magnitude
	has U magnitude
	has position on celestial sphere from the point of view of Earth
	has parallax from the point of view of Earth's orbit
	has proper motion
	has radiation at surface which is diffused out from the hotter core
	has energy source gravitational contraction and or fusion
	has energy production which takes place primarily within the core
	has surface density which depends on luminosity class
	has surface temperature greater than 1000 Kelvin
	has age
	has catalog star catalog
	has material hydrogen, helium
	has velocity determined from proper motion and radial velocity
	has mass greater than 0.08 the sun's mass
Wolf-Rayet	has ejection velocity 2000 km s-1
	has temperature up to 50000 K
celestial body	has spectra
physical object	has location or center of gravity
	has angular momentum
	has momentum
	has volume
	has extent

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