BL Lacertae object

BL La·​cer·​tae object | \ -ləˈsərtē-, -tē-\
variants: or less commonly BL Lac object \ -​ˈlak-​ \

Definition of BL Lacertae object

: a celestial object that is similar to a quasar in the intensity of its radiation and is recognizable by its radio emissions

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First Known Use of BL Lacertae object

1975, in the meaning defined above

History and Etymology for BL Lacertae object

BL Lacertae, original designation for the first such object to be discovered, from BL, designation for the 89th variable star in a constellation + New Latin Lacertae, genitive of Lacerta, a constellation

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The first known use of BL Lacertae object was in 1975

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appealing forcibly to the mind or reason

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