A raw spectrum obtained with FORS

A long, narrow slit isolates a small strip of sky. On this image, the slit is vertical. The spectrograph then splits the light from the slit into its individual colours, each point of the slit forming a horizontal rainbow. In this spectrum, the light from a distant galaxy appears as a faint horizontal line, peppered with bright dots corresponding to the colours emitted by the gas in the galaxy.

Credit:

ESO

Over de afbeelding

Id:fors2_spectrum
Type:Observatie
Publicatiedatum:9 april 2014 11:42
Grootte:2036 x 2068 px

Over het object

Naam:FORS2
Type:Unspecified : Technology : Observatory : Instrument
Categorie:Paranal

Afbeeldingstypen

Grote JPEG
2,5 MB

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Kleuren & filters

BandTelescoop
Very Large Telescope
FORS2

 

Bekijk ook