Aroteon Stars are an anomalous star type found almost exclusively in the Flower and Cosmoria Galaxies, with only five known exceptions. They are extremely bizarre stars with wildly varying temperatures and chemical compositions in various portions of the star, creating their distinctive rainbow appearance, which is at odds with all non-anomalous stars. Aroteon Stars are the most common subset of the Faresae, a group of anomalous star types which are only found in the Flower and Cosmoria Galaxies. Aroteon Stars are particularly common, making up ~0.04% of the total stellar population in both galaxies, much higher than any other anomalous star type. However, this is an average, and some regions of space have a much higher concentration of them, such as Nellai's Object and the Lance Galaxy.
Aroteon Stars also have significantly varying characteristics, with some, especially the population in Nellai' Object, being much brighter than others. The dimmest known, Shavraltus, is located in the Lance Galaxy and has a luminosity of only 0.000001 standard solar luminosities. In this, Aroteon Stars have much more varying characteristics then normal stars.
It is unknown what produces these bizarre colorings of their surface, and many of them have been set aside for research. For unknown reasons, Aroteon Stars also have much lower planet levels than the background stellar population, with the average number of planets being significantly less than 1. A possible explanation for this is that the measured temperature of these stars are much higher than normal stars of their mass, which drives away planetary disks. However, no one's entirely sure if Aroteon Stars ever have disks in the first place.
Aroteon Stars form in almost exactly the same manner as normal stars. The only difference is they have a high concentration of various isotopes of Chromastrodium, an extremely high-mass element which is very good at refracting light into very specific wavelengths, which differ for each isotope. Because of this, their evolution is also very similar. Chromastrodium atoms of the same isotope notably concentrate together, causing the variously colored patches on the surface of the star.
However, over billions of years, these "patches" spread out to cover the whole star, replacing patches with layers, and creating what is known as a Shifting Dwarf. The Chromastrodium isotope layers of shifting dwarfs slowly switch around, causing the star to change color with each star having a unique color switching cycle. Eventually, the normal fusion processes in the star cease in the same way as normal stars do, depending on mass, and the Aroteon Star dies in the corresponding manner.