BeschrijvingNew shot of Proxima Centauri, our nearest neighbour.jpg
English: Shining brightly in this Hubble image is our closest stellar neighbour: Proxima Centauri.
Proxima Centauri lies in the constellation of Centaurus (The Centaur), just over four light-years from Earth. Although it looks bright through the eye of Hubble, as you might expect from the nearest star to the Solar System, Proxima Centauri is not visible to the naked eye. Its average luminosity is very low, and it is quite small compared to other stars, at only about an eighth of the mass of the Sun.
However, on occasion, its brightness increases. Proxima is what is known as a “flare star”, meaning that convection processes within the star’s body make it prone to random and dramatic changes in brightness. The convection processes not only trigger brilliant bursts of starlight but, combined with other factors, mean that Proxima Centauri is in for a very long life. Astronomers predict that this star will remain middle-aged — or a “main sequence” star in astronomical terms — for another four trillion years, some 300 times the age of the current Universe.
These observations were taken using Hubble’s Wide Field and Planetary Camera 2 (WFPC2). Proxima Centauri is actually part of a triple star system — its two companions, Alpha Centauri A and B, lie out of frame.
Although by cosmic standards it is a close neighbour, Proxima Centauri remains a point-like object even using Hubble’s eagle-eyed vision, hinting at the vast scale of the Universe around us.
Español: El brillante resplandor en esta imagen del Hubble es nuestro vecino estelar más cercano: Próxima Centauri.
Proxima Centauri se encuentra en la constelación de Centaurus (El Centauro), poco más de cuatro años-luz de la Tierra. A pesar de que parece brillante por el ojo de Hubble, como se podría esperar de la estrella más cercana al Sistema Solar, Proxima Centauri no es visible a simple vista. Su luminosidad media es muy baja, y es muy pequeña en comparación con otras estrellas, en sólo alrededor de una octava parte de la masa del Sol
Sin embargo, en ocasiones, que aumenta su brillo. Proxima es lo que se conoce como una "estrella bengala", lo que significa que los procesos de convección dentro del cuerpo de la estrella hacen propenso a cambios aleatorios y dramáticos en el brillo. Los procesos de convección no sólo desencadenan brillantes estallidos de luz de las estrellas, pero, en combinación con otros factores, hacen que Proxima Centauri posea una vida muy larga. Los astrónomos predicen que esta estrella se mantendrá de mediana edad - o una estrella "secuencia principal" en términos astronómicos - por otros cuatro billones de años, algunos 300 veces la edad del Universo actual.
Estas observaciones fueron tomadas con el campo ancho de Hubble y la cámara planetaria 2 (WFPC2). Proxima Centauri es en realidad parte de un sistema estelar triple - sus dos compañeros, Alpha Centauri A y B, se encuentran fuera del marco.
Aunque para los estándares cósmicos es un vecino cercano, Proxima Centauri sigue siendo un objeto puntual incluso utilizando la visión ojos de águila del Hubble, haciendo alusión a la gran escala del universo que nos rodea.
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
ESA/Hubble materials may not be used to state or imply the endorsement by ESA/Hubble or any ESA/Hubble employee of a commercial product or service.
ESA/Hubble requests a copy of the product sent to them to be indexed in their archive.
If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".
Notes:
Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
Also note that music, scientific papers and code on the esahubble.org site are not released under this license and can not be used for non-ESA/Hubble products.
By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.
Delen – het werk kopiëren, verspreiden en doorgeven
Remixen – afgeleide werken maken
Onder de volgende voorwaarden:
naamsvermelding – U moet op een gepaste manier aan naamsvermelding doen, een link naar de licentie geven, en aangeven of er wijzigingen in het werk zijn aangebracht. U mag dit op elke redelijke manier doen, maar niet zodanig dat de indruk wordt gewekt dat de licentiegever instemt met uw werk of uw gebruik van zijn werk.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
Bijschriften
Beschrijf in één regel wat dit bestand voorstelt
Proxima Centauri Star
நம்முடைய அண்டை நட்சத்திரம் "பிராக்சிமா செண்டயுரி"யின் புதிய புகைப்படம் (ஹாப்புள் தொலைநோக்கி)
Dit bestand bevat aanvullende gegevens, die waarschijnlijk door een fotocamera, scanner of fotobewerkingsprogramma toegevoegd zijn.
Als het bestand is aangepast, komen sommige details mogelijk niet overeen met het gewijzigde bestand.
Credit/Leverancier
ESA/Hubble & NASA
Bron
ESA/Hubble
Korte naam
New shot of Proxima Centauri, our nearest neighbour
Omschrijving afbeelding
Shining brightly in this Hubble image is our closest stellar neighbour: Proxima Centauri. Proxima Centauri lies in the constellation of Centaurus (The Centaur), just over four light-years from Earth. Although it looks bright through the eye of Hubble, as you might expect from the nearest star to the Solar System, Proxima Centauri is not visible to the naked eye. Its average luminosity is very low, and it is quite small compared to other stars, at only about an eighth of the mass of the Sun. However, on occasion, its brightness increases. Proxima is what is known as a “flare star”, meaning that convection processes within the star’s body make it prone to random and dramatic changes in brightness. The convection processes not only trigger brilliant bursts of starlight but, combined with other factors, mean that Proxima Centauri is in for a very long life. Astronomers predict that this star will remain middle-aged — or a “main sequence” star in astronomical terms — for another four trillion years, some 300 times the age of the current Universe. These observations were taken using Hubble’s Wide Field and Planetary Camera 2 (WFPC2). Proxima Centauri is actually part of a triple star system — its two companions, Alpha Centauri A and B, lie out of frame. Although by cosmic standards it is a close neighbour, Proxima Centauri remains a point-like object even using Hubble’s eagle-eyed vision, hinting at the vast scale of the Universe around us.
Gebruiksvoorwaarden
Creative Commons Attribution 4.0 International License