Red+Giant

=== A red giant is an evolved giant star with a surface temperature of 2,500 to 3,500 °C and a diameter between 10 and 100 times that of the Sun. Even though there a very few of these stars you can still catch them with the naked eye and will be visible to you, this is because they have a very short life span. For scientist it can be very difficult to find the exact mass of one of these stars as this is pretty unlikely because the mass of a star can be measured directly only if the star has a binary companion. In the case of a red giant, the companion would have been swallowed up if it was too close to the ' evolving star'. All red giants are believed to pulsate (beat, pound or thump) and therefore it is a variable. A star that has just been formed to be a red giant may pulsate and vary in brightness. ===

Habitability:
=== There is no way human life can even last 1 minute on this system, it is made up from gases and hydrogen so humans cant even stand on it, not only are those the problems with sustaining human life but also these stars explode after a few thousand of years and im sure you wouldn’t want to be standing on it when that happens. ===