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.

Källa:

ESO

Om bilden

ID:eso0013d
Typ:Observation
Publiceringsdatum:6 april 2000
Relaterade pressmeddelanden:eso0013
Storlek:800 x 613 px

Om objektet

Namn:Sagittarius Dwarf Galaxy
Typ:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Avstånd:80000 ljusår
Kategori:Galaxies

Bildformat

Originalstorlek
70,6 kB
Stor jpeg
73,6 kB
Skärmstor jpeg
94,0 kB

Färger och filter

BandTeleskop
Synligt ljus
V
Very Large Telescope
UVES