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> Hubble deep field south
Hubble deep field south
author: Nasa/Stsci/Novapix
reference: a-gax97-00010
Image Size 300 DPI: 31 * 32 cm
This picture is the culmination of a 10-day-long observation called the Hubble Deep Field South which was carried out in October 1998. This new "far-look" complements the original Hubble "deep field" taken in late 1995, when Hubble was aimed at a small patch of space near the Big Dipper. The new region is in the constellation Tucana, near the south celestial pole. Hubble's sharp vision allows astronomers to sort galaxy shapes. The image is dominated by beautiful pinwheel-shaped disk galaxies, which are like our Milky Way. The picture also contains a variety of peculiar-shaped galaxies that are in collision with companion galaxies. Elliptical galaxies appear as reddish blobs. A sprinkling of foreground stars (belonging to our Milky Way) appear as bright points with "diffraction spikes" an artifact of all telescope optics. The colors in the pictures are a natural representation of the galaxies' stellar populations. Blue corresponds to young hot stars. Red may indicate older stars, starlight scattered by dust, or very distant starlight that has been stretched to redder wavelengths by the universe's expansion.
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