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> Infrared view of the Andromeda galaxy (M31)

Infrared view of the Andromeda galaxy (M31)

author: Nasa/Jpl/Caltech/Novapix

reference: a-gax02-24071

Image Size 300 DPI: 17 * 5 cm

The multi-wavelength view of Andromeda combines images taken at 24 microns (blue), 70 microns (green), and 160 microns (red). Using all three bands from the multiband imaging photometer allows astronomers to measure the temperature of the dust by its color. The warmest dust is brightest at 24 microns while the coolest is most evident at 160 microns. The blue/white areas have the hottest dust, as seen in the bulge and in the star-forming areas along the arms. The cooler dust floating further out in the ring and arms are in the redder regions. The data were taken on August 25, 2004 by Spitzer space telescope.

Keywords for this photo:

2004 - ANDROMEDA - ASTRONOMY - COMPOSITE - GALAXY - INFRARED - LOCAL GROUP - M31 - NGC 224 - Sb - SPIRAL GALAXY - SPITZER SPACE TELESCOPE - STAR -