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physical object > natural object > celestial body > collection of stars > galaxy > active galaxy > blazar |
blazar | ||||
subject | fact |
blazar | has definition A highly variable active galaxy which, in general, displays no emission lines in its spectrum. | |
has definition A term collectively used to refer to Optically Violent Variables (OVVs) and BL Lac objects. | ||
is a kind of active galaxy | ||
is a kind of radio galaxy | ||
active galaxy | has luminosity 1043 to 1046 ergs s-1 | |
galaxy | has number of stars 106 to 1012 | |
has catalog galaxy catalog | ||
radio source | has wavelength radio | |
is a part of celestial sphere | ||
has catalog radio source catalog | ||
celestial body | has spectra | |
physical object | has location or center of gravity | |
has angular momentum | ||
has mass | ||
has velocity | ||
has momentum | ||
has temperature | ||
has volume | ||
has extent | ||
has material |
Kinds of blazar :