α Centauri (Latinised to Alpha Centauri) is the system's designation given by J. Bayer in 1603. It belongs to the constellation Centaurus, named after the half human, half horse creature in Greek mythology. Heracles accidentally wounded the centaur and placed him in the sky after his death. Alpha Centauri marks the right front hoof of the ...

2010年1月1日 · Alpha Centauri is made up of three stars, the closest of which is only 4.22 light-years away. It is also an interesting place because it is considered one of the relatively few locations in the Milky Way that may offer conditions that are favorable to terrestrial life.

2023年3月5日 · In 2019, researchers spotted one of the largest stellar flares ever recorded in the Milky Way emerging from Proxima Centauri. The jet of plasma, which lasted just 7 seconds, was around 100...

2023年4月16日 · Alpha Centauri, the 3rd-brightest star in the sky, photographed in Coonabarabran, NSW, Australia, by Alan Dyer. A faint swarm of stars to the right is the star cluster NGC 5617. Across the...

2024年7月27日 · NASA estimates that, using a space shuttle like NASA's now-retired 122-foot-long (38 meters) Discovery, it would take close to 150,000 years to reach Alpha Centauri. If humans could...

2025年1月17日 · Alpha Centauri, triple star system that contains Proxima Centauri, the closest star to the Sun, about 4.2 light-years distant. The system is the third brightest star in the sky. The nearest extrasolar planets are the three planets that orbit Proxima Centauri.

Bearing the “alpha designation,” Alpha Centauri is the brightest star in the southern constellation of Centaurus. It shines with an apparent magnitude of -0.27. The Alpha Centauri star system is the third brightest star in our night sky. The only brighter stars are Sirius and Canopus.

2020年8月30日 · Orbital plot of Proxima Centauri showing its position with respect to Alpha Centauri over the coming millenia (graduations are in thousands of years). The large number of background stars is due to the fact that Proxima Cen is located very close to …

Alpha Centauri is a star system located in the Milky Way galaxy and is one of the closest star systems to our own solar system. It is composed of three stars, Alpha Centauri A, Alpha Centauri B, and Proxima Centauri, and is believed to have a potentially habitable planet.

2023年8月13日 · To determine if Alpha Centauri is in the Milky Way, we must first understand the extent of our galaxy. The Milky Way is a spiral galaxy that spans a staggering 100,000 light-years in diameter, housing billions of stars, stellar systems, and countless celestial wonders.