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.

Crediti:

ESO

Riguardo l'immagine

Identificazione:eso0013d
Tipo:Osservazione
Data di rilascio:06 Aprile 2000
Notizie relative:eso0013
Grandezza:800 x 613 px

Riguardo all'oggetto

Nome:Sagittarius Dwarf Galaxy
Tipo:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Distanza:80000 Anni luce
Categoria:Galaxies

Formati delle immagini

JPEG grande
73,6 KB

Colori e filtri

BandaTelescopio
Ottico
V
Very Large Telescope
UVES