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
|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