Sirianus

Sirianus is a rarely used adjective derived from the proper noun Sirius, the brightest star in the night sky. Its primary meaning relates to or pertaining to the star Sirius.

More specifically, "Sirianus" can describe:

• Anything connected with the star Sirius, such as its properties, location, or mythological associations. For example, one could speak of the "Sirianus stellar system" when referring to Sirius A and its white dwarf companion, Sirius B.

• Hypothetical inhabitants or civilizations originating from planets orbiting Sirius, often found in science fiction or esoteric literature.

The usage of "Sirianus" is significantly less common than simply using "Sirius" as an adjective (e.g., "Sirius' luminosity"). Its presence is primarily found in specialized scientific or astronomical contexts, or within works of fiction that necessitate a dedicated adjective form.