List of Quasars - Extremes

Extremes

Title Quasar Data Notes
Optically brightest on Earth 3C 273 Apparent Magnitude
~ 12.9		 Absolute Magnitude: −26.7
Seemingly optically brightest APM 08279+5255 Seeming Absolute Magnitude
−32.2		 This quasar is gravitationally lensed, its actual absolute magnitude is estimated to be −30.5
Optically brightest at source Absolute Magnitude
Most powerful quasar radio source 3C 273 Also the most powerful radio source in the sky
Most powerful
Most variable quasar radio source QSO J1819+3845 (Q1817+387) Also the most variable extrasolar radio source
Least variable quasar radio source
Most variable quasar optical source
Least variable quasar optical source
Most distant ULAS J1120+0641 z=7.085
Most distant radio-quiet quasar
Most distant radio-loud quasar QSO J1427+3312 z=6.12 Found June 2008
Most distant blazar quasar QSO J0906+6930 z=5.47
Least distant 3C273 z=0.158

Read more about this topic:  List Of Quasars

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