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.

Źródło:

ESO

O zdjęciu

Identyfikator:eso9854c
Typ:Obserwacje
Data publikacji:18 listopada 1998
Powiązane komunikaty:eso9854
Rozmiar:2904 x 2319 px

O obiekcie

Nazwa:Spectrum, Sun
Typ:Solar System : Star
Kategoria:Stars

Formaty zdjęć

Wielki JPEG
2,3 MB

Tapety

1024x768
311,4 KB
1280x1024
538,2 KB
1600x1200
791,4 KB
1920x1200
927,0 KB
2048x1536
1,2 MB

Kolory i filtry

PasmoTeleskop
Very Large Telescope
UVES