About this image
3C273 is a strong radio source in the constellation Virgo: this image from the KPNO 4-meter Mayall telescope shows the visible part of the object. The quasar (quasi-stellar object) may radiate a hundred times more light than the brightest ordinary galaxy, and its jet may measure some 150000 light-years in length.
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Minimum credit line: NOAO/AURA/NSF
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