The term “Sirius” can refer to multiple entities:
Sirius (Star):
Astronomy: Sirius is the brightest star in our night sky, located in the constellation Canis Major. It has an apparent magnitude of −1.46, making it nearly twice as bright as Canopus, the next brightest star. Sirius is a binary star system composed of:
Sirius A: A main-sequence star about twice as massive as the Sun.
Sirius B: A faint white dwarf companion.
Distance: Approximately 8.6 light-years (2.64 parsecs) from Earth.
SiriusXM:
Media Company: SiriusXM is a satellite radio company offering a wide range of audio entertainment, including music, sports, news, and talk shows. In August 2024, podcast host Alex Cooper signed a multiyear advertising and distribution deal with SiriusXM, reportedly worth up to $125 million.