BlazarW
Blazar
BL Lacertae objectW
BL Lacertae object
OVV quasarW
OVV quasar
3C 66AW
3C 66A
3C 371W
3C 371
3C 454.3W
3C 454.3
Markarian 421W
Markarian 421
Markarian 501W
Markarian 501