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added by Ts Jan. 27, 2018, 4:57 p.m.
What is a BL Lacertae object?
Double stars
Star-like objects
Variable stars
magnetic bodies
BL Lac objects are defined as possessing the following characteristics: star-like, surrounded by nebulosity; large and sometimes rapid light variations; up to 35% polarization with rapid changes in angle and degree; and optical spectral features generally weak or undetected.
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Votes

      Acceptable  Ninjai
      Acceptable  misanthrope
      Acceptable  th3pizgat0r