Sirius is the brightest star in the Earth's night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek: Σείριος Seirios. Sirius is one of the nearest stars to us after the sun.
Distance to Earth: 8.611 light years
Surface temperature: 9,940 K
Mass: 4.018E30 kg (2.02 Solar mass)
Luminosity: 25.4 L☉
Constellation: Canis Major