Spitzer and Hubble team up to find "Big Baby" galaxy in the newborn Universe [Spitzer/IRAC view]

This image demonstrates how data from two space observatories, the Spitzer and Hubble Space Telescopes, are used to identify one of the most distant galaxies ever seen. This galaxy is unusually massive for its youthful age of 800 million years. (After the Big Bang, the Milky Way by comparison, is approximately 13 billion years old.)

The Spitzer Infrared Array Camera (IRAC), easily detects the galaxy at longer infrared wavelengths. Spitzer's IRAC is sensitive to the light from older, redder stars, which should make up most of the mass in a galaxy. The brightness of the infrared galaxy suggests that it is quite massive.

Credit:

NASA, ESA, B. Mobasher ( Space Telescope Science Institute and the European Space Agency)

About the Image

Id:heic0513e
Type:Observation
Release date:27 September 2005, 19:00
Related releases:heic0513
Size:750 x 750 px

About the Object

Name:Hubble Ultra Deep Field, HUDF, HUDF-JD2
Type:• Early Universe : Galaxy : Size : Giant
• Early Universe : Galaxy : Grouping : Cluster
• X - Star Clusters Images/Videos
Distance:z=4.25 (redshift)

Colours & filters

BandWavelengthTelescope
Infrared
Near-IR
3.6 μm Spitzer Space Telescope
IRAC
Infrared
Near-IR
4.5 μm Spitzer Space Telescope
IRAC
Infrared
Near-IR
5.8 μm Spitzer Space Telescope
IRAC
Infrared
Near-IR
8.0 μm Spitzer Space Telescope
IRAC

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