Waspie_Dwarf Posted March 31 #1 Share Posted March 31 (IP: Staff) · Hubble Views an Intriguing Active Galaxy Quote 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. Read More: NASA 1 Top Link to comment Share on other sites More sharing options...
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