UVES spectrum of the Sun

The image shows part of a test spectrum of the Sun, taken by UVES in the Laboratory in Garching on October 19, 1998. The bright (nearly) horizontal lines correspond to adjacent, small wavelength ranges of the solar spectrum. Within these, many vertical dark lines indicate the presence of certain elements in the solar atmosphere, for instance gaseous hydrogen or iron. From the line shapes and their depths, it is possible to determine the temperature, pressure and chemical abundances of this gas. Small shifts in wavelength of such lines, when measured in other stars, indicate velocity changes due to the Doppler effect that may be caused by invisible planets circling the observed star.

Crédito:

ESO

Sobre la imagen

Identificador:eso9854c
Tipo:Observación
Fecha de publicación:18 de Noviembre de 1998
Noticias relacionadas:eso9854
Tamaño:2904 x 2319 px

Sobre el objeto

Nombre:Spectrum, Sun
Tipo:Solar System : Star
Categoría:Stars

Formatos de imagen

JPEG grande
2,3 MB

Fondo de pantalla

1024x768
311,2 KB
1280x1024
538,1 KB
1600x1200
791,3 KB
1920x1200
927,0 KB
2048x1536
1,2 MB

Colores y filtros

BandaTelescopio
Very Large Telescope
UVES