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.

Crédito:

ESO

Sobre a imagem

Id:eso0013d
Tipo:Observação
Data de divulgação:6 de Abril de 2000
Notícias relacionadas:eso0013
Tamanho:800 x 613 px

Sobre o objeto

Nome:Sagittarius Dwarf Galaxy
Tipo:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Distância:80000 anos-luz
Categoria:Galaxies

Formatos de imagens

JPEG grande
73,6 KB

Cores e filtros

BandaTelescópio
Óptico
V
Very Large Telescope
UVES