The Star

Isuja orbits a star, which I shall refer to as the Star (as opposed to the Sun) until modern languages develop sufficiently for a true name to be produced.

The Star is 1.259 times the mass of our Sun, making it quite larger (1.158 times the radius) and brighter (2.804 times the luminosity). It's also younger than the Sun: it's only 3.892 billion years old. On the other hand, it will live a shorter amount of time than our Sun: it will live to be only about 5.011 billion years old, as opposed to about 10 billion for the Sun.

The Star is 0.849 times as dense as the Sun, and its surface temperature is 6810 Kelvin (6537 °C, or 11798 °F).

The habitable zone of the Star is from 1.511 to 2.177 AU.