A STIS absorption spectrum

A beam of light coming to Earth from a distant quasar passes through numerous intervening gas clouds in galaxies and in intergalactic space. These clouds of primeval hydrogen subtract specific colours from the beam. The resulting 'absorption spectrum, ' recorded by Hubbles Space Telescope Imaging Spectrograph (STIS) is used to determine the distances and chemical composition of the invisible clouds.


About the Image

NASA press release
Release date:23 November 1998, 21:00
Size:800 x 600 px

About the Object

Type:Unspecified : Galaxy : Activity : AGN : Quasar
Unspecified : Technology : Observatory : Telescope
Category:Quasars and Black Holes

Image Formats

Large JPEG
158.3 KB
Screensize JPEG
211.6 KB

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