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.

Kilde:

ESO

Om bildet

ID:eso0013d
Type:Observasjon
Publiseringsdato:6. april 2000
Relaterte pressemeldinger:eso0013
Størrelse:800 x 613 px

Om objektet

Navn:Sagittarius Dwarf Galaxy
Type:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Avstand:80000 lysår
Kategori:Galaxies

Bildeformater

Stor JPEG
73,6 KB
Medium JPEG
94,0 KB

Farger og filtre

BåndTeleskop
Optisk
V
Very Large Telescope
UVES