Simplify the following text for a Grade 9 native English-speaking person.
Original: Its orbit is less eccentric and inclined than those of its bigger cousins - being indeed the most circular of any asteroid found up to that point - and as a consequence it never becomes as bright as Iris or Hebe , especially as it is much farther from the Sun than those asteroids .
Simplified: Amphirite 's orbit is less eccentric and inclined than those of its larger cousins ; indeed , it is the most circular of any asteroid discovered up to that point . As a consequence , it never becomes as bright as Iris or Hebe , especially as it is much further from the Sun than those asteroids .