Vega is one of the stars that make up the Summer Triangle.... Vega is one of the stars … Old Norse, Latin: Earth. [101][note 6] The constellation was represented as a vulture in ancient Egypt,[102] and as an eagle or vulture in ancient India. Na, möchte sich jemand mit bahnbrechenden Funktionen für die Zukunft wappnen? Celestia Vega is not only a YouTuber, she's currently working as a porn star. The equator of Vega is 19% bigger than its polar radius. (2012)[98] and the Herschel Space Telescope. 230, Verses 8–11). [22], Observations, first with the Palomar Testbed Interferometer by David Ciardi and Gerard van Belle in 2001[87] and then later confirmed with the CHARA array at Mt. At the high end of estimates for the rotation velocity for Vega is 236.2 ± 3.7 km/s[11] along the equator, much higher than the observed (i.e. [83], The name is believed to be derived from the Arabic term Al Nesr al Waki النسر الواقع which appeared in the Al Achsasi al Mouakket star catalogue and was translated into Latin as Vultur Cadens, "the falling eagle/vulture". https://www.thoughtco.com/vega-star-facts-4137641 (accessed January 27, 2021). [15] For the Roman Empire, the start of autumn was based upon the hour at which Vega set below the horizon. Another possibility is that the star formed from an interstellar medium of gas and dust that was unusually metal-poor. [14], This star lies at a vertex of a widely spaced asterism called the Summer Triangle, which consists of Vega plus the two first-magnitude stars Altair, in Aquila, and Deneb in Cygnus. The star is about 40 times brighter than the Sun, but because it's 25 light-years away, it seems dimmer. Dust would collect in orbits that have mean-motion resonances with this planet—where their orbital periods form integer fractions with the period of the planet—producing the resulting clumpiness. [89] This may be caused by an intense bombardment of comets or meteors, and may be evidence for the existence of a planetary system. Subscriber Count: 148K. ; Search for more names by meaning. [35] Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. As viewed from the poles, this results in a darker (lower-intensity) limb than would normally be expected for a spherically symmetric star. Vega became the first star to have a car named after it with the French Facel Vega line of cars from 1954 onwards, and later on, in America, Chevrolet launched the Vega in 1971. [Medieval Latin, from Arabic (an-nasr) al-wāqi', the falling (eagle), Vega : al-, the + wāqi', falling, active participle of waqa'a, to fall; see wqʕ in Semitic roots.] The estimated total mass of this dust is 3×10−3 times the mass of the Earth (around 7.5 times more massive than the asteroid belt). The Earth's axis of rotation precesses, like a wobbling toy top, which means "north" changes over a period of around 26,000 years. Der Name leitet sich vom arabischen Ausdruck النسر الواقع, an-nasr al-wāqiʿ ab, was in Übersetzung herabstoßender (Adler) bedeutet. The disk of dust is produced as radiation pressure from Vega pushes debris from collisions of larger objects outward. All three stars are extremely bright in a region with few other bright stars. [14][19][33] Henry Draper took the first photograph of a star's spectrum in August 1872 when he took an image of Vega, and he also became the first person to show absorption lines in the spectrum of a star. [24] In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[25] to catalog and standardize proper names for stars. While the Sun appears round, Vega is noticeably flattened. If the Sun was viewed from Vega, in contrast, its magnitude would only be a faint 4.3. [115], In Hindu mythology, Vega is called Abhijit and is mentioned in the Mahabharata Vana Parva (Chap. Similarities between the Sun and Vega are that they both have magnetic fields and sunspots. [20] Similar lines had already been identified in the spectrum of the Sun. Energy transfer is instead performed by the radiative process, which may be causing an abundance anomaly through diffusion.[77]. W.H. [71] By the Von Zeipel theorem, the local luminosity is higher at the poles. [80] Vega will make its closest approach in an estimated 264,000 years at a perihelion distance of 13.2 ly (4.04 pc). In 2016, the International Astronomical Union organized a Working Group on Star Names(WGSN) to catalog and standardize proper names for stars. At present, Vega has more than twice the mass[21] of the Sun and its bolometric luminosity is about 40 times the Sun's. [83] Considering the amplitude of the signal, the authors estimated a minimum mass of 21.9±5.1 Earth masses, but considering the very oblique rotation of Vega itself of only 6.2° from Earth's perspective, the planet may be aligned to this plane as well, giving it an actual mass of 203±47 Earth masses. To standardize the magnitude scale, astronomers chose Vega to represent magnitude zero at all wavelengths. [99], Although a planet has yet to be directly observed around Vega, the presence of a planetary system cannot yet be ruled out. Hence it is more likely to have been produced as the result of a relatively recent breakup of a moderate-sized (or larger) comet or asteroid, which then further fragmented as the result of collisions between the smaller components and other bodies. The metallicity of Vega's photosphere is only about 32% of the abundance of heavy elements in the Sun's atmosphere. Radeon™ RX 480-Grafikkarten mit Polaris-Architektur und AMD LiquidVR™ Technologie stehen für atemberaubende … [ vē ′gə, vā ′gə ] A star in the constellation Lyra and one of the five brightest stars in the night sky. [22], The inner boundary of the debris disk was estimated at 11″±2″, or 70–100 AU. In northern Canada, Alaska, and most of Europe, Vega never sets. This star is relatively close at only 25 light-years from the Sun, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood. Vega, brightest star in the northern constellation Lyra and fifth brightest in the night sky, with a visual magnitude of 0.03. Production of the dust would require collisions between asteroids in a population corresponding to the Kuiper Belt around the Sun. It is a gaseous body having a highly compressed core, in which energy is generated by thermonuclear reactions (at about 15 million kelvins), surrounded by less dense radiative and convective zones serving to transport the energy to the surface (the photosphere). [74][75] However, the reason for the existence of such chemically peculiar, spectral class A0-F0 stars remains unclear. Tied up with Jupiter or Venus, Vega is said to pave the way to riches and fame. Vega represents the amount that an option contract's price changes in … [23], By 2005, the Spitzer Space Telescope had produced high-resolution infrared images of the dust around Vega. Vega is the brightest star in school, working harder than any other student at Starling Academy. The mean magnitudes for these six stars were defined as: U − B = B − V = 0. It is now so entered in the IAU Catalog of Star Names. [54], Vega's spectral class is A0V, making it a blue-tinged white main sequence star that is fusing hydrogen to helium in its core. [note 5], In 2021, a paper analyzing 10 years of spectra of Vega detected a candidate 2.43-day signal around Vega, statistically estimated to have only a 1% chance of being a false positive. [32], Astrophotography, the photography of celestial objects, began in 1840 when John William Draper took an image of the Moon using the daguerreotype process. Vega’s spectral type is A (white) and its luminosity class V (main sequence). The "Summer Triangle" consists of the bright stars Vega, Deneb, and Altair. The meaning of Vega is “Falling Star”. [81], Based on this star's kinematic properties, it appears to belong to a stellar association called the Castor Moving Group. It is also one of the Sun’s closer neighbours, at a distance of about 25 light-years. With the viewing angle and rotation rate of Vega now better known, this will allow improved instrument calibrations.[72]. Vega is a bright star located just 25 light-years from Earth, visible in the summer sky of the Northern Hemisphere. Eventually this function became denoted by the Pleiades. Vega was one of the stars used to define the magnitude scale, so it has an apparent magnitude around 0 (+0.026). Thus there could be smaller, terrestrial planets orbiting closer to the star. [13] Vega is also a variable star that varies slightly in brightness. Another obvious difference between Vega and the Sun is its color. At 5480 Å, the flux density is 3,650 Jy with an error margin of 2%. [95], Using a coronagraph on the Subaru telescope in Hawaii in 2005, astronomers were able to further constrain the size of a planet orbiting Vega to no more than 5–10 times the mass of Jupiter. [36], The distance to Vega can be determined by measuring its parallax shift against the background stars as the Earth orbits the Sun. [73] Thus, in terms of abundances, only about 0.54% of Vega consists of elements heavier than helium. In the US, it was used for only a handful of children of both sexes. A proposed mechanism for maintaining the dust was a disk of coalesced bodies that were in the process of collapsing to form a planet. It has the Bayer designation α Lyrae, which is Latinised to Alpha Lyrae and abbreviated Alpha Lyr or α Lyr. [49][50] However, a 2007 article surveyed these and other results, and concluded that "A conservative analysis of the foregoing results suggests that Vega is quite likely variable in the 1-2% range, with possible occasional excursions to as much as 4% from the mean". She's skyrocketed to the top of the porn charts and has worked with major YouTube creators such as KSI. Search comprehensively and find the name meaning of Vega and its name origin or of any other name in our database. What does VEGA mean? You're looking for a bright blue-white star. … Vega Starseed is an alien species that originates from the brightest star system of the constellation Lyra, Vega. The Japanese Tanabata festival, in which Vega is known as Orihime (織姫), is also based on this legend. Astronomers believe the dust may have resulted from collisions between objects in a debris disk. [28] This formation is the approximate shape of a right triangle, with Vega located at its right angle. Thus the dust is more likely created by a debris disk around Vega, rather than from a protoplanetary disk as was earlier thought. projected) rotational velocity because Vega is seen almost pole-on. Thus the variability was thought to possibly be the result of systematic errors in measurement. Noun. It is rotating rapidly with a velocity of 236 km/s at the equator. They can, of course, be reincarnated on Earth as well, and when that happens, they most commonly take a humanoid form that boasts of gorgeous dark skin, … [107], Among the northern Polynesian people, Vega was known as whetu o te tau, the year star. Jul 25, 2014 - Baby Girl Name: Lyra. [112], In Zoroastrianism, Vega was sometimes associated with Vanant, a minor divinity whose name means "conqueror". However, Vega may be much older than this group, so the membership remains uncertain. However, images by the Keck telescope had ruled out a companion down to magnitude 16, which would correspond to a body with more than 12 times the mass of Jupiter. Also known as dwarf Cepheids, these stars are used as standard candles to establish distances to open and globular star … [12] If Vega is variable, then it may be a Delta Scuti type with a period of about 0.107 days. Paige Jennings. In a good cosmic configuration, Vega is supposed to give artistic talents especially for music and acting, but also a liking for good living. Thus most astronomers at the time, including Struve, credited Bessel with the first published parallax result. [86], Following the discovery of an infrared excess around Vega, other stars have been found that display a similar anomaly that is attributable to dust emission. [62] The X-ray emission from Vega is very low, demonstrating that the corona for this star must be very weak or non-existent. Since more massive stars use their fusion fuel more quickly than smaller ones, Vega's main-sequence lifetime is roughly one billion years, a tenth of the Sun's. Here is the new URL. This dust is likely to be the result of collisions between objects in an orbiting debris disk, which is analogous to the Kuiper belt in the Solar System. 0. Because of Vega’s fast rotation, the star is bulged at the equator and results in different temperatures across the star’s photosphere. The pole of Vega—its axis of rotation—is inclined no more than five degrees from the line-of-sight to the Earth. [47] This is a category of stars that oscillate in a coherent manner, resulting in periodic pulsations in the star's luminosity. [96] The issue of possible clumps in the debris disc was revisited in 2007 using newer, more sensitive instrumentation on the Plateau de Bure Interferometer. With a declination of +38.78°, Vega can only be viewed at latitudes north of 51° S. Therefore, it does not rise at all anywhere in Antarctica or in the southernmost part of South America, including Punta Arenas, Chile (53° S). At this time, no planet has been definitively identified orbiting Vega, but its possible terrestrial planets could orbit near the star, probably in its equatorial plane. To the ancient Greeks, the constellation Lyra was formed from the harp of Orpheus, with Vega as its handle. Volatility drives price changes in options. Vega has functioned as the baseline for calibrating the photometric brightness scale and was one of the stars used to define the zero point for the UBV photometric system. [85], Subsequent measurements of Vega at 193 μm showed a lower than expected flux for the hypothesized particles, suggesting that they must instead be on the order of 100 μm or less. However, continuous production of the amount of dust observed over the course of Vega's lifetime would require an enormous starting mass—estimated as hundreds of times the mass of Jupiter. [76], The observed helium to hydrogen ratio in Vega is 0.030±0.005, which is about 40% lower than the Sun. The Summer Triangle is recognizable in the northern skies for there are few other bright stars in its vicinity. [100], From the perspective of an observer on a hypothetical planet around Vega, the Sun would appear as a faint 4.3 magnitude star in the Columba constellation. [67] Magnetic fields of roughly 30 gauss have been reported for Vega, compared to about 1 gauss for the Sun. Definition of VEGA in the Definitions.net dictionary. This is because Vegas has over twice the mass of the Sun and is spinning so rapidly (236.2 km/s at its equator), that it experiences centrifugal effects. [11] This rapid rotation of Vega produces a pronounced equatorial bulge, so the radius of the equator is 19% larger than the polar radius. How do you use vega in a sentence? This apparent magnitude is a numerical value that decreases in value with increasing brightness of the star. [11] This group contains about 16 stars, including Alpha Librae, Alpha Cephei, Castor, Fomalhaut and Vega. Vega is the fifth-brightest star in the night sky and the second-brightest star in the northern celestial hemisphere (after Arcturus). This dusty disk would be relatively young on the time scale of the star's age, and it will eventually be removed unless other collision events supply more dust. Vega is also known as Alpha Lyrae (α Lyrae, Alpha Lyr, α Lyr), as it is the principle star in the constellation Lyra, the lyre. The WGSN's first bulletin of July 2016 included a table of the first two batches of names approved by the WGSN; whi… … Membership in a moving group implies a common origin for these stars in an open cluster that has since become gravitationally unbound. This is the first such detection of a magnetic field on a spectral class A star that is not an Ap chemically peculiar star. As of 2002, about 400 of these stars have been found, and they have come to be termed "Vega-like" or "Vega-excess" stars. It was proposed that this radiation came from a field of orbiting particles with a dimension on the order of a millimeter, as anything smaller would eventually be removed from the system by radiation pressure or drawn into the star by means of Poynting–Robertson drag. In effect, the magnitude scale has been calibrated so that the magnitude of these stars is the same in the yellow, blue, and ultraviolet parts of the electromagnetic spectrum. This process becomes dominant at a temperature of about 17 million K,[56] which is slightly higher than the core temperature of the Sun, but is less efficient than the Sun's proton-proton chain reaction fusion reaction. [93], In 2003 it was hypothesized that these clumps could be caused by a roughly Neptune-mass planet having migrated from 40 to 65 AU over 56 million years,[94] an orbit large enough to allow the formation of smaller rocky planets closer to Vega. Around July 1, Vega reaches midnight culmination when it crosses the meridian at that time. Vega is a star in the Lyra constellation, the fifth brightest star in the night sky and the second brightest star in the norther celestial hemisphere. In classical times it was said to be a particularly good omen when Vega was matutine subsolar (conjunct Sun above the horizon, in houses 6 or 12). Origin and Meaning. [55] The current age of this star is about 455 million years,[11] or up to about half its expected total main-sequence lifespan. The direction of the Earth's axis of rotation gradually changes over time in a process known as the precession of the equinoxes. In another 500 million years or so, Vega will become a class-M red giant, after which it will lose most of its mass and become a white dwarf. What is the meaning of vega? Through precession, the pole will again pass near Vega around AD 14,000. That is, a vulture on the ground with its wings folded (Edward William Lane, Jupiter-mass planet on an eccentric orbit, "Hubble Space Telescope Absolute Spectrophotometry of Vega from the Far-Ultraviolet to the Infrared", "Astrometric Studies of Aldebaran, Arcturus, Vega, the Hyades, and Other Regions", "A New View of Vega's Composition, Mass, and Age", "Bulletin of the IAU Working Group on Star Names, No. [84] The latter is the result of radiation pressure creating an effective force that opposes the orbital motion of a dust particle, causing it to spiral inward. The astral V… These much wider disks were found to be circular and free of clumps, with dust particles ranging from 1–50 μm in size. This is 88% of the speed that would cause the star to start breaking up from centrifugal effects. Further south, Vega is below the horizon more of the time and may be trickier to find. For a period of history it marked the start of their new year when the ground would be prepared for planting. 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