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Comparación en infrarrojo y visible de la Galaxia Escultor (NGC 253)

© ESO/J. Emerson/VISTA. Acknowledgment: Cambridge Astronomical Survey Unit

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120 mal angesehen
Imagen en infrarrojo de VISTA de la Galaxia Escultor (NGC 253)
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120 mal angesehen
16. 06. 2010

Comparación en infrarrojo y visible de la Galaxia Escultor (NGC 253)

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For the first time, astronomers have been able to directly follow the motion of an exoplanet as it moves to the other side of its host star. The planet has the smallest orbit so far of all directly imaged exoplanets, lying as close to its host star as Saturn is to the Sun. The team of astronomers used the NAOS-CONICA instrument (or NACO), mounted on one of the 8.2-metre Unit Telescopes of ESO's Very Large Telescope (VLT), to study the immediate surroundings of Beta Pictoris in 2003, 2008 and 2009. In 2003 a faint source inside the disc was seen, but it was not possible to exclude the remote possibility that it was a background star. In new images taken in 2008 and spring 2009 the source had disappeared! The most recent observations, taken during autumn 2009, revealed the object on the other side of the disc after having been hidden either behind or in front of the star. This confirmed that the source indeed was an exoplanet and that it was orbiting its host star. It also provided insights into the size of its orbit around the star. The above composite shows the reflected light on the dust disc in the outer part, as observed in 1996 with the ADONIS instrument on ESO's 3.6-metre telescope. In the central part, the observations of the planet obtained in 2003 and autumn 2009 with NACO are shown. The possible orbit of the planet is also indicated, albeit with the inclination angle exaggerated.
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46 mal angesehen
11. 06. 2010

The motion of Beta Pictoris b

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es
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11. 06. 2010

El movimiento de Beta Pictoris b

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es
23 mal angesehen
01. 06. 2010

Acercándose hacia la Gran Nube de Magallanes

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Infrarotbild der Spiralgalaxie Messier 83 aufgenommen mit der HAWK-I Kamera
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109 mal angesehen
20. 05. 2010

Neue Ansichten einer altbekannten Spiralgalaxie

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This image of the nearby galaxy Messier 83 was taken in the infrared part of the spectrum with the HAWK-I instrument on ESO’s Very Large Telescope. The very fine image quality of this camera, coupled with the huge light-collecting power of the VLT, reveals vast numbers of stars within the galaxy. The images were taken in three different parts of the infrared spectrum and the total exposure time was eight and a half hours, split into more than five hundred exposures of one minute each. The field of view is about 13 arcminutes across.
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115 mal angesehen
19. 05. 2010

The classic spiral Messier 83 seen in the infrared with HAWK-I

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La clásica espiral Messier 83 en infrarrojo con HAWK-I
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45 mal angesehen
19. 05. 2010

Acercamiento a la imagen en infrarrojo de Messier 83 captada por HAWK-I

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de
42 mal angesehen
09. 05. 2010

Herrmanns Himmelsblicke Mai 2010

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This image, in the constellation of Vulpecula, shows an entire assembly line of newborn stars. The diffuse glow reveals the widespread cold reservoir of raw material that our Galaxy has in stock for building stars.
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91 mal angesehen
07. 05. 2010

Herschel one year in space

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