Look up in the sky! It’s a quasar! It’s an active galactic nucleus! It’s a Seyfert galaxy!

“This luminous image from the NASA/ESA Hubble Space Telescope shows Z 229-15, a celestial object that lies about 390 million light-years from Earth in the constellation Lyra. Z 229-15 is one of those interesting celestial objects defined as several different things: sometimes as an active galactic nucleus (an AGN); sometimes as a quasar; and sometimes as a Seyfert galaxy. Which of these is Z 229-15 really? The answer is that it is all these things all at once, because these three definitions have significant overlap.”—”Hubble Views an Intriguing Active Galaxy”

Hermetic Library Omnium Look Up in the Sky Its a Quasar Its an Active Galactic Nucleus Its a Seyfert Galaxy 1apr2023

Also “A newly released image taken by the Hubble Space Telescope shows Z 229-15, which, at first glance, simply appears to be a spiral galaxy, given its two spiraling arms of [stars](https://www.space.com/57-stars-formation-classification-and-constellations.html) emanating from a bright core. But it’s far, far more than that.” “So, technically, Z 229-15 is a Seyfert galaxy with a quasar-subclass AGN. As ESA, which co-manages Hubble with NASA, calls it, Z 229-15 is ‘Everything, in one place, all at once'”—”Hubble telescope spies mysterious celestial object that defies classification”

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