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.

Kredit:

ESO

O snímku

Id:fors2_spectrum
Typ:Pozorování
Datum zveřejnění:9. dubna 2014 11:42
Velikost:2036 x 2068 px

O objektu

Jméno:FORS2
Typ:Unspecified : Technology : Observatory : Instrument
Kategorie:Paranal

Image Formats


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Pozadí

1024x768
337,6 KB
1280x1024
602,7 KB
1600x1200
988,6 KB
1920x1200
1,3 MB
2048x1536
1,8 MB

Barvy & filtry

PásmoDalekohled
Very Large Telescope
FORS2