Anomalies: Permanent sunspot, Over-extended lifespan
Sphere of Cauldron is area where suns gravitational currents and radiation bursts are strongest. As blue giants radiate strongly in UV spectrum it’s light can be damaging to biological life. Also gravitational disturbances of sun make piloting on Cauldron area Challenging.
After 821.M41 the sun’s activity has increased and space traveling at cauldron area has become lethal to standard Imperial vessels.