To I 700 is a star the planet orbit around but only D and E orbit in the habitable zone. The habitable zone, also known as Goldilocks zone, is an area that is just the right distance from a star where water can exist on a planet surface and the conditions are neither too hot nor too cold. For light. Is a small, cool grass planet located around 100 light years away from the Earth. In 2020, Gilbert and others announced the discovery of Earth size habitable planet zone