Proxima b - Earth’s new neighbour

kg

5.97x 10

kg

7.76x 10

Like the Earth, Proxima b orbits in the ‘habitable’ zone from its star, Proxima Centauri, where its temperature is such that any surface water could be liquid

Strangely similar

Earth

Habitable zone

149.6m km

Sun

Earth

7.5m km

Alpha

Centauri A

Alpha

Centauri B

Habitable zone

Proxima b

Mass

Proxima b has a similar mass to Earth and

might be rocky like us

Proxima

Centauri

Proxima b’s orbit. Every

year lasts 11 days

Proxima b

6

2

4

Light years

Proxima

Centauri

Proxima b

Solar

system

Proxima b

Proxima

Centauri

Habitable zone

Not to scale

Our nearest planet, outside the solar system, is 4.2 light years away and has similarities with planet Earth

kg

5.97x 10

kg

7.76x 10

Strangely similar

Earth

Habitable zone

149.6m km

Sun

Earth

7.5m km

Alpha

Centauri A

Alpha

Centauri B

Habitable zone

Proxima b

Mass

Proxima b has a similar mass to

Earth and might be rocky like us

Proxima

Centauri

Proxima b’s

orbit. Every

year lasts

11 days

Proxima b

6 light years

4 light years

2 light years

Proxima

Centauri

Proxima b

Solar system

Proxima b

Proxima

Centauri

Habitable zone

Like the Earth, Proxima b orbits in the ‘habitable’ zone

from its star, Proxima Centauri, where its temperature

is such that any surface water could be liquid

Not to scale

Our nearest planet, outside the solar system, is 4.2 light

years away and has similarities with planet Earth