Polaris, 7 times big as the Sun, is in the constellation of Ursa Minor. Polaris is a multiple star system, Polaris Ab, Polaris B orbiting Polaris. NASA found out that their is two more stars orbiting Polaris ( Mass and Diameter is unknown, though I made it up ). These stars we're from a cluster.
Polaris Ab is a dwarf, orbiting at 18 AU ( at Uranus's orbit ) to Polaris, explaining why its light is swamped by its close and much brighter companion.
Polaris B is a main sequence star, orbiting Polaris at 2400 AU. It can be seen with even a modest telescope.
Topic: Polaris System (Read 4431 times)
