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Hace 1 día · The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth. The brightest, most massive and most luminous object among those 131 is Sirius A , which is also the brightest star in Earth's night sky ; its white dwarf companion Sirius B is the hottest object among them.
Hace 3 días · Proxima Centauri is a small, low-mass star located 4.2465 light-years (1.3020 pc) away from the Sun in the southern constellation of Centaurus. Its Latin name means the 'nearest [star] of Centaurus'. It was discovered in 1915 by Robert Innes and is the nearest-known star to the Sun.
Hace 1 día · The distance of Alpha Centauri from the Earth is now reckoned at 4.396 light-years or 4.159 × 10 13 km.) α Centauri A (left) is of the same stellar type G2 as the Sun, while α Centauri B (right) is a K1-type star. Later, John Herschel made the first micrometrical observations in 1834.
Hace 1 día · Gliese 12b orbits a cool red dwarf star around 40 light-years away — practically neighborly compared to other exoplanets — with a period of 12.8 days. Its distance from its host star means that its surface might be temperate enough for life, with a temperature of 107°F (42°C).
Hace 1 día · Spiral Galaxy NGC 3059, 57 million light-years away, is imaged using Hubble with a focus on H-alpha emission, revealing star formation. This mesmerizing Hubble Space Telescope image features the barred spiral galaxy NGC 3059, which is located approximately 57 million light-years from Earth. The data used to compose this image were collected by Hubble in May 2024, as part of an observing ...
Hace 4 días · In order to survive, the United Earth Government installs about 10,000 giant engines on Earth to propel it away from its initial orbit and flee to Alpha Centauri about 4.2 light years away. The whole trip is expected to last 2,500 years, during which time humankind will go through about 100 generations.
Hace 3 días · The LMC is about 160,000 light-years from Earth, and the SMC lies 190,000 light-years away. The LMC and SMC are 14,000 and 7,000 light-years in diameter, respectively—smaller than the Milky Way Galaxy, which is about 140,000 light-years across.
