Terran Sun

The Terran Sun is the central star of the Terran Solar System, and what gives Earth the light and heat it needs to support life. However, venturing too close to it would be vitual suicide, and the heat alone would spell doom for a space traveller.

In Ultima II, the Stranger had to avoid entering the coordinates "4, 4, 4," as these were the coordinates of the sun, and hyperjumping there would have resulted in the instant destruction of the rocket and its pilot.