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List Of Star Systems Within 35–40 Light-years
This is a list of star systems within 35-40 light years of Earth. See also *Lists of stars * List of star systems within 30-35 light-years * List of star systems within 40-45 light-years *List of nearest stars and brown dwarfs This list covers all known stars, brown dwarfs, and sub-brown dwarfs within of the Sun. So far, 131 such objects have been found, of which only 22 are bright enough to be visible without a telescope. The visible light needs to reach or exce ... References {{DEFAULTSORT:List of star systems within 35-40 light-years star systems within 35-40 light-years Star systems star systems within 35-40 light-years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surface is made up of the ocean, dwarfing Earth's polar ice, lakes, and rivers. The remaining 29% of Earth's surface is land, consisting of continents and islands. Earth's surface layer is formed of several slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's liquid outer core generates the magnetic field that shapes the magnetosphere of the Earth, deflecting destructive solar winds. The atmosphere of the Earth consists mostly of nitrogen and oxygen. Greenhouse gases in the atmosphere like carbon dioxide (CO2) trap a part of the energy from the Sun close to the surface. Water vapor is widely present in the atmosphere and forms clouds that cover most of the planet. More solar e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma Serpentis
Gamma Serpentis (γ Serpentis, γ Ser) is a star in the equatorial constellation Serpens, in the part of the constellation that represents the serpent's head (Serpens Caput). It has an apparent visual magnitude +3.85, which means it is visible to the naked eye. Based upon parallax measurements by the Hipparcos spacecraft, this star is approximately 36.7 light years from Earth. Properties Gamma Serpentis is an ordinary F-type main sequence star with a stellar classification of F6 V. It is larger and more massive than the Sun, with three times the solar luminosity. Based upon its mass, it may have a convection zone in its core region. The projected rotational velocity along the equator is 10.2 km/s. It is younger than the Sun with an estimated age of 3.5 billion years. The effective temperature of the star's outer atmosphere is 6,350 K, giving it the yellow-white-hued glow of an F-type star. Occasionally Gamma Serpentis is listed as having two 10th magnitud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HIP 57050
HIP 57050 (GJ 1148 / LHS 2443 / G 122-40 / Ross 1003) is a red dwarf 36 light-years from the Sun with a planetary companion HIP 57050 b. HIP 57050 has a metallicity twice that of the Sun and is among the highest in the immediate solar neighborhood. Planetary system A team led by astronomer Nader Haghighipour reported the discovery of a Saturn-sized planet in the habitable zone of the star in 2010. According to Haghighipour, the detection is important because it "indicates that observational techniques are on the right track for finding habitable low-mass rocky planets similar to Earth." According to its discoverers, HIP 57050 b provides support for the proposition that planet-bearing M-class stars tend to be metal-rich, a correlation already observed in F, G and K-class stars. At the expected planetary effective temperature, the atmosphere may contain water clouds, potentially detectable by the Hubble Space Telescope if it could capture a planetary transit. The planet's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
54 Piscium
54 Piscium is an orange dwarf star approximately 36 light-years away in the constellation of Pisces (constellation), Pisces. In 2003, an extrasolar planet was confirmed to be orbiting the star, and in 2006, a brown dwarf was also discovered orbiting it. Stellar components The Flamsteed designation 54 Piscium originated in the star catalogue of the British astronomer John Flamsteed, first published in 1712. It has an apparent magnitude of 5.86, allowing it to be seen with the unaided eye under suitable viewing conditions. The star has a stellar classification, classification of K0V, with the luminosity class V indicating this is a main sequence star that is generating energy at its core through the thermonuclear fusion of hydrogen into helium. The effective temperature of the photosphere is about 5,062 K, giving it the characteristic orange hue of a K-type star. It has been calculated that the star may have 76 percent of the Sun's mass and 46 percent of the luminosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HR 6806
HR 6806 is a solitary, orange, main sequence, and Sun-like (K2 V) star located thirty-six light-years away, in the constellation Hercules. The star is smaller than the Sun, with around 79% of the solar mass and radius, and 35% of the solar luminosity. It appears to be rotating slowly with an estimated period of 42 days. In 1988, it was noticed that the star had an inactive chromosphere, with a surface magnetic field strength of only 1,500 G. From 1990 activity in the chromosphere increased, inline with a 16 year stellar cycle previously observed. But, sometime after 1994 (exact date unknown because of a data collection gap between 1995 and 2004) chromospheric activity greatly reduced, and has stayed flat for more than 16 years. the star appears to have entered the equivalent of a Maunder minimum. The star is around six billion years of age. There was suspected to be a nearby very cool, and very dim, T9 to Y brown dwarf companion, WISE J180901.07+383805.4, at an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denebola
Denebola is the second-brightest star in the zodiac constellation of Leo.The two components of the γ Leonis double star, which are unresolved to the naked eye, have a combined magnitude brighter than it. It has the Bayer designation Beta Leonis or β Leonis, which are abbreviated Beta Leo or β Leo. Denebola is an A-type main sequence star with 75% more mass than the Sun and 15 times the Sun's luminosity. Based on parallax measurements from the Hipparcos astrometry satellite, the star is at a distance of from the Sun. Its apparent visual magnitude is 2.14, making it readily visible to the naked eye. Denebola is a Delta Scuti type variable star, meaning its luminosity varies very slightly over a period of a few hours. Nomenclature ''β Leonis'' ( Latinised to ''Beta Leonis'') is the star's Bayer designation. In Johann Bayer's ''Uranometria'' (1603), it was designated β (Beta) as the second-brightest star in the constellation. It also bears the Flamsteed designati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2MASS J16452211-1319516
Mass is an intrinsic property of a body. It was traditionally believed to be related to the quantity of matter in a physical body, until the discovery of the atom and particle physics. It was found that different atoms and different elementary particles, theoretically with the same amount of matter, have nonetheless different masses. Mass in modern physics has multiple definitions which are conceptually distinct, but physically equivalent. Mass can be experimentally defined as a measure of the body's inertia, meaning the resistance to acceleration (change of velocity) when a net force is applied. The object's mass also determines the strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram (kg). In physics, mass is not the same as weight, even though mass is often determined by measuring the object's weight using a spring scale, rather than balance scale comparing it directly with known masses. An object on the Moon would weigh less t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LP 993-115
LP or lp may stand for: Businesses and organizations *LP, Limited partnership in corporate law or a Limited Partner in a venture capital fund In politics *Labour Party (other), in several countries *Liberal Party, in several countries *Libertarian Party (United States), or a member thereof Schools *Lower Primary school, a subdivision of primary schools in certain places *Lorne Park Secondary School, a high school in Mississauga, Ontario, Canada Other businesses and organizations *LAN Perú, an airline based in Lima, Peru (IATA code LP) *Louisiana-Pacific, a manufacturer of building materials *Lowercase people, an organization founded by rock band Switchfoot *Ladakh Police, police agency of Ladakh, India Science and technology Computing and mathematics *lp (Unix), command for printing documents * ''L''''p'' space *LPMud, a type of virtual world server software created in 1989 *LP or lp, the device name for a printer in some computer operating systems ** A legacy abbrev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliese 438
Gliese may refer to: * Rochus Gliese (1891—1978), a German actor, director, production designer, and art director * Wilhelm Gliese (1915–1993), a German astronomer, best known for the Gliese Catalogue of Nearby Stars * Gliese Catalogue of Nearby Stars, a modern star catalog of stars located within 25 parsecs of the Earth * Gliese 163, a red dwarf located 49 light years from the Sun * Gliese 229, a binary system composed of a red dwarf and a brown dwarf about 19 light years away in the constellation Lepus. * Gliese 581, a red dwarf orbited by several extra-solar planets, at least ** Gliese 581d, a planet in the star's habitable zone * Gliese 667, a triple star system in the constellation of Scorpius containing exoplanet GJ 667 Cc in one of the stars' habitable zone * Gliese 682, a red dwarf in the constellation of Scorpius with two candidate planets, one of which is in the star's habitable zone * Gliese 710, a star projected to pass through the Oort Cloud in 1.35 million years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WISE 2313-0837
WISE may refer to: Arts, entertainment, and media *WISE (AM), a radio station licensed to Asheville, North Carolina *WISE-FM, a radio station licensed to Wise, Virginia *WISE-TV, a television station licensed to Fort Wayne, Indiana Education *Web-based Inquiry Science Environment, a program hosted by Berkeley University *Wilberforce Institute for the study of Slavery and Emancipation, a research institute at University of Hull, England *Wind Science and Engineering Research Center (WiSE), at Texas Tech University *World Islamic Sciences and Education University, in Amman, Jordan Organisations and programmes *WISE Campaign, an initiative to encourage women into science and engineering *Work improvement in small enterprises, a programme for improvement of occupational health-and-safety conditions *World Information Service on Energy, an international anti-nuclear network based in Amsterdam *World Innovation Summit for Education, a global forum based in Doha, Qatar *World Institute o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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