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bn:01011557n
Noun Concept
SYL
No term available
EN
An active galactic nucleus is a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that the luminosity is not produced by stars. Wikipedia
Relations
Sources
IS A
EN
galaxy
HAS PART
EN
supermassive black hole
PART OF
EN
galaxy
EN
galactic bulge
HAS KIND
EN
quasar
EN
Seyfert galaxy
EN
radio galaxy
EN
BL Lacertae object
HAS INSTANCE
NGC 4261
Ngc 4450
NGC 5087
NGC 5291
NGC 5371
+463 relations
DESCRIBED BY SOURCE
Internetowa encyklopedia PWN

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