Giros estelares
A primera vista, esta imagen tomada por el fotógrafo embajador de ESO, Alexandre Santerne, ¡desorienta un poco! Aunque parece una ilusión óptica o una pintura abstracta, se trata de arcos generados por las estrellas al hacer círculos alrededor del polo sur celeste, todo visto desde el Observatorio La Silla de ESO, en Chile.
Cada rastro circular representa una estrella individual, observada durante un largo período de tiempo para capturar el movimiento de las estrellas en el cielo causado por la rotación de la Tierra. La Silla se asienta en las afueras del desierto chileno de Atacama, a unos 2.400 metros sobre el nivel del mar, y ofrece unas condiciones de observación perfectas para obtener imágenes de larga exposición como ésta: ¡el lugar disfruta de más de 300 noches despejadas al año!
El lugar acoge a muchos de los telescopios de ESO y a varios proyectos nacionales dirigidos por los estados miembros de ESO. Algunos de estos telescopios pueden verse hacia la parte inferior de la imagen. El Telescopio de 3,6 metros de ESO, que se yergue en el vértice izquierdo, es ahora hogar de cazador de planetas extrasolares más importante del mundo: HARPS (High Accuracy Radial velocity Planet Searcher), el buscador de planetas de alta precisión por velocidad radial.
Otros telescopios de La Silla son el New Technology Telescope, que oculta en parte al Telescopio de 3,6 metros de ESO, el Telescopio Suizo de 1,2 metros Leonhard Euler, el Telescopio Schmidt de un metro de ESO, la cúpula plateada del Telescopio MPG/ESO de 2,2 metros, el Telescopio Danés de 1,54 metros y los Telescopios ESO de 1,52 metros, todos visibles en esta imagen.
Juntando todas estas instalaciones, La Silla constituye una de las instalaciones basadas en tierra científicamente más productiva del mundo después del telescopio VLT (Very Large Telescope) de ESO. Con casi 300 artículos publicados al año, atribuibles a la labor del observatorio, La Silla se mantiene a la vanguardia de la astronomía (ann15014).
Enlaces:
- Esta fotografía en el photostream de Flickr de Alexandre Santerne
- Photostream de Flickr de Alexandre Santerne
- El grupo de flickr “Your ESO Pictures”
Crédito:
ESO/A.Santerne
Sobre la imagen
Identificador: | potw1534a |
Idioma: | es-cl |
Tipo: | Fotográfico |
Fecha de publicación: | 24 de Agosto de 2015 a las 10:00 |
Tamaño: | 4368 x 2912 px |
Sobre el objeto
Nombre: | Star Trails |
Tipo: | Unspecified : Technology : Observatory |
Formatos de imagen
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