Black Sun

The Black Sun was a Warp anomaly that plagued the world of Sarastus on a regular cycle of thirteen years, appearing as a black star shining poisonous light. It didn't start forming until the world had fallen away from Imperial attention - an event that would be taken advantage of by the Night Lords warband known as the Prophets of True Night as a recruiting event. This bloody festival would become known as True Night.^[1]

Yehzod, the Sorcerer of the Prophets of True Night, would become obsessed with the anomaly, seeking to study and understand it. His influence would be the deciding factor in the Prophets' returning to Sarastus for recruitment, despite the Chaos Lord Vassaago becoming disillusioned with the diminishing returns of Sarastus as a recruiting world.^[1]

Yehzod would create an artefact called The Needle to serve as a custodian and an aid to study the Black Sun, but which also became an important object during True Night. Despite Yehzod's efforts to control the object, the Needle would eventually become more autonomous, becoming self-serving and aligned toward the Black Sun.^[1]

Trivia

The following information is not to be regarded as officially sanctioned and/ or is not written from an in-universe point of view. A detailed explanation of the term "Trivia" as used in the Lexicanum can be found here.

• The Black Sun is, visually, a very similar phenomenon to the Tyrant Star of the Fantasy Flight Games continuity.^[2] However, the Black Sun is a localized event of definite nature that occurs on a regular cycle. In contrast, the Tyrant Star has nomadic and randomized nature, and its origins and properties are uncertain.

Sources

• 1: Nightfall (Short Story)
• 2: Dark Heresy Core Rulebook pg. 292