Metals in Sagittarius dwarf galaxy

This image shows a tiny portion of the spectrum of a giant star (V = 18.2) in the Sagittarius Dwarf galaxy, as recorded by UVES. A total integration time of 3 hours covered the spectral range 480 - 680 nm and provided a S/N-ratio of approx. 40 at 600 nm. The figure shows transitions due to FeI, CaI and BaII and illustrates the wealth of different elements that can be accurately measured in an object as faint as this one.

Credit:

ESO

Over de afbeelding

Id:eso0013d
Type:Observatie
Publicatiedatum:6 april 2000
Gerelateerde berichten:eso0013
Grootte:800 x 613 px

Over het object

Naam:Sagittarius Dwarf Galaxy
Type:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Afstand:80000 lichtjaren
Categorie:Galaxies

Afbeeldingstypen

Grote JPEG
73,6 KB

Kleuren & filters

BandTelescoop
Optisch
V
Very Large Telescope
UVES