10 times as big as the solar system?
The scale of that illustration shows a black hole much bigger than 10 times, perhaps 80 times or more?
But, I suppose that the article meant to say a diameter ten times as big as the solar system.
A diameter 10 times the size of our solar system would mean the black hole has a diameter (way) more than the distance between our sun and the closest star, 4.3 light-years away. Yikes! It would be well over 12 light-years across. Good grief.
http://curious.astro.cornell.edu/question.php?number=374