N U
Neptune crossing 3:22:1 Plutinos classical KBOs scattered KBOs N U
J S U N P
Jupiter Saturn Uranus Neptune Mercury Venus Earth Mars Pluto Asteroid belt
Jupiter Saturn Uranus Neptune Mercury Venus Earth Mars Pluto Asteroid belt ?
Jupiter Saturn Uranus Neptune Mercury Venus Earth Mars Pluto Asteroid belt ? Kuiper belt
J S U N P
# discovered KBOs Uranus Neptune Pluto Quaoar SJ
Uranus Neptune Pluto Quaoar SJ
heliocentric distance number
heliocentric distance number r -3/2
heliocentric distance number r -11
Jupiter Saturn Uranus Neptune Mercury Venus Earth Mars Pluto Asteroid belt ? Kuiper belt
Jupiter Saturn Uranus Neptune Mercury Venus Earth Mars Pluto Asteroid belt Kuiper belt The edge of the solar system > inner
20,000 – 100,000 AU
?
J S U N P
a=480 AU e=0.85 i=12 q=76 AU Q=900 AU P=10,500 yr
Where did it come from? -in situ formation -scattered by modest-sized ~70AU -close stellar encounter
Where did it come from? -in situ -scattered by modest-sized ~70AU -close stellar encounter
Where did it come from? -in situ -scattered by modest-sized ~70AU -close stellar encounter -dense stellar birth environment