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Hace 16 horas · Carl Friedrich Gauss. Johann Carl Friedrich Gauss (German: Gauß [kaʁl ˈfʁiːdʁɪç ˈɡaʊs] ⓘ; [2] [3] Latin: Carolus Fridericus Gauss; 30 April 1777 – 23 February 1855) was a German mathematician, astronomer, geodesist, and physicist who contributed to many fields in mathematics and science. He ranks among history's most influential ...
- Mathematics and sciences
Hace 1 día · Su-Shu Huang, an American astrophysicist, first introduced the term "habitable zone" in 1959 to refer to the area around a star where liquid water could exist on a sufficiently large body, and was the first to introduce it in the context of planetary habitability and extraterrestrial life.
Hace 3 días · Kepler-1229 is a red dwarf star that is approximately 54% the mass of and 51% the radius of the Sun. It has a temperature of 3784 K and is roughly 3.72 billion years old. [4] In comparison, the Sun is about 4.6 billion years old [9] and has a temperature of 5778 K. [10] The star is slightly poor in metals, with a metallicity ( [Fe/H]) of about ...
Hace 4 días · When combined with the radial-velocity method (which determines the planet's mass), one can determine the density of the planet, and hence learn something about the planet's physical structure. The planets that have been studied by both methods are by far the best-characterized of all known exoplanets.
Hace 2 días · Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars.Their mass is approximately 13 to 80 times that of Jupiter (M J) —not big enough to sustain nuclear fusion of ordinary hydrogen (1 H) into helium in their cores, but massive enough to emit some light and heat from the fusion of deuterium (2 H).
