Quasar Host Galaxy

Quasars are the most distant objects in the universe, and so are among the earliest objects known to have formed in the young universe, more than 12 billion years ago. The most widely accepted notion is that quasars are in galaxies with active, supermassive black holes at their centers.

However, because of their enormous distance, the 'host' galaxies appear very small and faint, and are very hard to see against the much brighter quasar light at the center. Though a quasar might no be much larger than our solar system it releases as much energy as billions of stars.


Dr. John Hutchings, Dominion Astrophysical Observatory, NASA/ESA

About the Image

NASA press release
NASA caption
Release date:26 April 1994, 06:00
Size:880 x 680 px

About the Object

Name:IRAS Z12295+2025, QSO 1229+204
Type:• Early Universe : Galaxy : Type : Interacting
• Early Universe : Galaxy : Activity : AGN : Quasar
Distance:z=0.063 (redshift)

Image Formats

Large JPEG
115.6 KB
Screensize JPEG
183.5 KB

Colours & filters

606 nm Hubble Space Telescope
702 nm Hubble Space Telescope

Notes: The left image was captured by the ground-based Canada-France-Hawaii Telescope (CFHT). The right was captured by the Hubble Space Telescope.

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