ดาวซิริอุส

Also known as HD 48915, 9 Canis Majoris, NSV 17173, CEL 1368, GAT 474, HR 2491, HIP 32349, HIC 32349

Sirius is the brightest star in the night sky, located in the southern constellation of Canis Major. Its name is derived from the Greek word (Latin script: ; ). The star is designated  Canis Majoris, Latinized to Alpha Canis Majoris, and abbreviated  CMa or Alpha CMa. With a visual apparent magnitude of −1.46, Sirius is almost twice as bright as Canopus, the next brightest star. 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, termed Sirius B. The distance betw

AI overview

Sirius is the brightest star visible from Earth, located in the constellation Canis Major, and it is actually a binary system made up of two stars: a main-sequence star and a white dwarf companion. It matters to astronomy and stargazing because its exceptional brightness makes it a prominent landmark in the night sky and provides scientists with an important example of a binary star system to study.

AI-generated from the Wikipedia summary — may contain errors.