Q. Which of the following terms correctly defines OJ 287?

[A] Blazar

[B] Black hole

[C] Asteroid

[D] Near-Earth object

Answer: A
Notes:
  • Blazars are one of the brightest sources in the Universe. A special class of these objects are called BL Lacs, which show rapid and large variability in emission. A blazar called OJ 287, whose central supermassive black hole is among the largest known, belongs to this class.

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