> This makes it the most luminous object in the known Universe<p>> J0529-4351 is over 500 trillion times more luminous than the Sun<p>That appears to contradict Wikipedia [1] which lists SMSS J215728.21-360215.1 [2] as the most luminous at an intrinsic bolometric luminosity of ~ 6.9 × 10^14 Suns or ~ 2.6 × 1041 watts.<p>Are there perhaps different ways of measuring luminosity?<p>[1] <a href="https://en.wikipedia.org/wiki/List_of_quasars" rel="nofollow">https://en.wikipedia.org/wiki/List_of_quasars</a><p>[2] <a href="https://en.wikipedia.org/wiki/SMSS_J215728.21-360215.1" rel="nofollow">https://en.wikipedia.org/wiki/SMSS_J215728.21-360215.1</a>
There is a brief video with pretty images (especially of the ESO VLT) here: <a href="https://www.youtube.com/watch?v=SXFvPcgMnuQ" rel="nofollow">https://www.youtube.com/watch?v=SXFvPcgMnuQ</a>
For those too lazy to read: the quasar is a supermassive blackhole growing at the rate of 1 Sun per day and with an accretion disk 7 light-years in diameter.<p>My question is: where does it find a Sun every day to eat??
The exciting thing about this article is whats implied, there will probably be more possibly even larger ones to find.<p>Tldr: it had been previously observed for decades and was mis-categorized.