vega meaning star

It is believed that these may provide clues to the origin of the Solar System. projected) rotational velocity because Vega is seen almost pole-on. [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 the Galactic coordinate system, the space velocity components of Vega are (U, V, W) = (−16.1 ± 0.3, −6.3 ± 0.8, −7.7 ± 0.3) km/s, for a net space velocity of 19 km/s. For comparison, the Sun has an abundance of elements heavier than helium of about ZSol = 0.0172±0.002. Vega was one of the stars used to define the magnitude scale, so it has an apparent magnitude around 0 (+0.026). 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. Vega has a spectral class of A0V, which means it is a blue-white main-sequence star that fuses hydrogen to make helium. [52], Vega became the first solitary main-sequence star beyond the Sun known to be an X-ray emitter when in 1979 it was observed from an imaging X-ray telescope launched on an Aerobee 350 from the White Sands Missile Range. The star Vega (Wega) is one of the brightest stars in the heavens. To standardize the magnitude scale, astronomers chose Vega to represent magnitude zero at all wavelengths. While the Sun has a central radiation zone at its core covered by a convection zone, Vega has a convection zone at its core that distributes ash from its nuclear reaction. Vega is the measurement of an option's price sensitivity to changes in the volatility of the underlying asset. [24] In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[25] to catalog and standardize proper names for stars. These were later identified as lines from the Hydrogen Balmer series. "Born upon a wish of a star, Vega is a dazzling variation of Ydri's Enchanting Zony. If the Sun was viewed from Vega, in contrast, its magnitude would only be a faint 4.3. Also known as Vegans, they were originated from Lyra so that they could colonise and dominate the dog star, Sirius. [81], Based on this star's kinematic properties, it appears to belong to a stellar association called the Castor Moving Group. [67] Magnetic fields of roughly 30 gauss have been reported for Vega, compared to about 1 gauss for the Sun. Vega’s spectral type is A (white) and its luminosity class V (main sequence). [97] The smooth structure has been confirmed in follow-up observations by Hughes et al. It has the Bayer designation α Lyrae, which is Latinised to Alpha Lyrae and abbreviated Alpha Lyr or α Lyr. [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. [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. Vega (Alpha Lyrae) is a beautiful bluish-white star located 25 light-years away in the constellation of Lyra. Vega's proper motion is 202.03 ± 0.63 milli-arcseconds (mas) per year in right ascension—the celestial equivalent of longitude—and 287.47 ± 0.54 mas/y in declination, which is equivalent to a change in latitude. [21], Based on an observed excess emission of infrared radiation, Vega appears to have a circumstellar disk of dust. [22], The inner boundary of the debris disk was estimated at 11″±2″, or 70–100 AU. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. The first person to publish a star's parallax was Friedrich G. W. von Struve, when he announced a value of 0.125 arcseconds (0.125″) for Vega. Celestia Vega is not only a YouTuber, she's currently working as a porn star. ThoughtCo, Aug. 28, 2020, thoughtco.com/vega-star-facts-4137641. On July 17, 1850, Vega became the first star (other than the Sun) to be photographed, when it was imaged by William Bond and John Adams Whipple at the Harvard College Observatory, also with a daguerreotype. W.H. In the Southern Hemisphere, Vega is visible low on the northern horizon during the Southern Hemisphere's winter. The name Vega is a girl's name of Arabic, Scandinavian, Aboriginal origin meaning "swooping eagle". [51] Also, a 2011 article affirms that "The long-term (year-to-year) variability of Vega was confirmed". Helmenstine, Anne Marie, Ph.D. (2020, August 28). In the mid-northern latitudes, Vega is almost directly overhead at night in mid-summer. The convection zone is in equilibrium with the star's atmosphere. [12] If Vega is variable, then it may be a Delta Scuti type with a period of about 0.107 days. Subscriber Count: 148K. It is rotating rapidly with a velocity of 236 km/s at the equator. [45] However, the flux density of Vega drops rapidly in the infrared, and is near 100 Jy at 5 micrometers. The temperature gradient may also mean that Vega has a convection zone around the equator,[12][70] while the remainder of the atmosphere is likely to be in almost pure radiative equilibrium. [103][104] The Arabic name then appeared in the western world in the Alfonsine Tables,[105] which were drawn up between 1215 and 1270 by order of Alfonso X. [48] Although Vega fits the physical profile for this type of variable, other observers have found no such variation. [101][note 6] The constellation was represented as a vulture in ancient Egypt,[102] and as an eagle or vulture in ancient India. [27], Vega can often be seen near the zenith in the mid-northern latitudes during the evening in the Northern Hemisphere summer. Thus, for many years, Vega was used as a baseline for the calibration of absolute photometric brightness scales. 100.Vega (Arabic origin), this name, meaning 'stooping eagle' is the name of one of the brightest stars in the sky, found in the Lyra constellation. α Lyrae (Latinised to Alpha Lyrae) is the star's Bayer designation. She's skyrocketed to the top of the porn charts and has worked with major YouTube creators such as KSI. Wega, auch Vega, oder in der Bayer-Bezeichnung α Lyrae, ist der Hauptstern des Sternbildes Leier (Lyra). 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). Vega Is THE brightest star in the summer sky. Many allow you to wave the phone across the sky until you see the name. With eccentric artists, this may lead to a debauched life. In astronomy, those elements with higher atomic numbers than helium are termed "metals". The name Vega means Stooping Eagle and is of Arabic origin.Vega is a name that's been used primarily by parents who are considering baby names for girls.. Name of the brightest star in the Lyra constellation. 0. User Submitted Meanings. However, this discrepancy can be explained if Vega is a rapidly rotating star that is being viewed from the direction of its pole of rotation. The Earth's axis of rotation precesses, like a wobbling toy top, which means "north" changes over a period of around 26,000 years. It is the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus. Immersives VR-Erlebnis. The radial velocity of Vega is the component of this star's motion along the line-of-sight to the Earth. This effect is most pronounced for tiny particles that are closer to the star. Meaning: Of the Lyre. The traditional name Vega (earlier Wega ) comes from a loose transliteration of the Arabic word wāqi‘ meaning "falling" or "landing", via the phrase an-nasr al-wāqi‘, "the falling eagle". [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.] [22] Stars that display an infrared excess due to dust emission are termed Vega-like stars. Motion transverse to the line of sight causes the position of Vega to shift with respect to the more distant background stars. "weaver girl", Vega) who is on the far side of the river, the Milky Way. [92], Determining the nature of the planet has not been straightforward; a 2002 paper hypothesizes that the clumps are caused by a roughly Jupiter-mass planet on an eccentric orbit. The magnitude of Vega was measured again in 1981 at the David Dunlap Observatory and showed some slight variability. 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