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

About the Image

Id:eso0013d
Type:Observation
Release date:6 April 2000
Related releases:eso0013
Size:800 x 613 px

About the Object

Name:Sagittarius Dwarf Galaxy
Type:Local Universe : Galaxy : Size : Dwarf
Local Universe : Galaxy : Type : Elliptical
Distance:80000 light years
Category:Galaxies

Image Formats

Large JPEG
73.6 KB
Screensize JPEG
94.0 KB

Colours & filters

BandTelescope
Optical
V
Very Large Telescope
UVES