Sun
Distance in
astronomical
units (AU)
1
Earth
Mars
Jupiter
Kuiper belt
Disc of icy bodies, dwarf planets and a trillion comets
10
Saturn
Pluto
Voyager 1
Will take 300 years to reach the Oort cloud, and 30,000 to pass through
100
1,000
Oort cloud
Contains trillions of comets, some of which could be knocked towards Earth by a passing star
10,000
Gliese 710
The star will cut through the cloud at a distance of 13,365 AU
100,000
Alpha Centuri
1m
Kuiper belt
Disc of icy bodies, dwarf planets and a trillion comets
Voyager 1
Will take 300 years to reach the Oort cloud, and 30,000 to pass through
Gliese 710
The star will cut through the cloud at a distance of 13,365 AU
Oort cloud
Contains trillions of comets, some of which could be knocked towards Earth by a passing star
Earth
Jupiter
Sun
Mars
Saturn
Pluto
Alpha Centuri
1
10
100
1,000
10,000
100,000
1m
Distance from the Sun in astronomical units (AU)