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シリウス（Sirius）は、おおいぬ座で最も明るい恒星で、全天21の1等星の1つで、太陽を除けば地球上から見える最も明るい恒星である。視等級は-1.46等で、シリウスに ...

Sirius is a binary star consisting of a main-sequence star of spectral type A0 or A1, termed Sirius A, and a faint white dwarf companion of spectral type DA2, ...

Sirius definition: the Dog Star, the brightest-appearing star in the heavens, located in the constellation Canis Major.. See examples of SIRIUS used in a ...

2024/4/17 -Sirius, brightest star in the night sky, with apparent visual magnitude −1.46. It is a binary star in the constellation Canis Major.

2024/2/2 -Bottom line: Sirius is the brightest star in the night sky as seen from Earth and is visible from both hemispheres. And it lies just 8.6 light- ...

2023/10/24 -Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky. The name means "glowing" in Greek — a fitting ...