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Barnard B
Barnard's Star b, or Barnard b, is a sub-Earth-mass exoplanet closely orbiting Barnard's Star, a nearby red dwarf star six light-years from Earth. The planet was discovered using Doppler spectroscopy, radial velocity observations from the ESPRESSO spectrograph on the Very Large Telescope, and was announced on 1 October 2024. It is the second from its star of four known planets in its system. The designation "Barnard's Star b" was first used for a different planetary candidate announced in 2018, the existence of which was later refuted. Characteristics Barnard b orbits close to its star, completing an orbit every 3.15 days at a distance of . It orbits closer to the star than the habitable zone and so is too hot to be potentially habitable, with an estimated equilibrium temperature of . Its orbital eccentricity is near zero, meaning its orbit is nearly circular. Barnard b is a sub-Earth, with a minimum mass of 0.3 times the Earth mass, mass of Earth, and is thus likely a rocky pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ESPRESSO
Espresso (, ) is a concentrated form of coffee produced by forcing hot water under high pressure through finely ground coffee beans. Originating in Italy, espresso has become one of the most popular coffee-brewing methods worldwide. It is characterized by its small serving size, typically 25–30 ml, and its distinctive layers: a dark body topped with a lighter-colored foam called "crema". Espresso machines use pressure to extract a highly concentrated coffee with a complex flavor profile in a short time, usually 25–30 seconds. The result is a beverage with a higher concentration of suspended and dissolved solids than regular drip coffee, giving espresso its characteristic body and intensity. While espresso contains more caffeine per unit volume than most coffee beverages, its typical serving size results in less caffeine per serving compared to larger drinks such as drip coffee. Espresso serves as the base for other coffee drinks, including cappuccino, Latte, caffè latte, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
