Astrophile – A star just like our own sun
Object: the star HIP 56948
Size: same as the sun
Temperature: same as the sun
Composition: same as the sun
Planets: same as the sun?
On an alien world remarkably like Earth, a sun rises. Its tiny disk scours the landscape with harsh, blue-tinted light… wait a minute, that’s not right. On an alien world remarkably like Earth, a sun rises. Its vast face floods the landscape with an eerie blood red glow. No no – this is still no place like home.
In the search for other Earths, the main goal is to find a planet the same size as ours that sits in the habitable zone – the region around a given star where planetary surface temperature would be similar to ours, allowing liquid water to exist. Almost all stars have such a zone. Around a hot bright star it is further out than Earth’s own orbit; with a dim star it is further in.
read more at New Scientist