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Herschel
Space Observatory

An ESA Mission
with Participation from NASA

Nhsc2012-001b

A Dwarf Galaxy's Star Bar and Dusty Wing

This new image shows the Small Magellanic Cloud galaxy in infrared light from the Herschel Space Observatory a European Space Agency-led mission with important NASA contributions, and NASA's Spitzer Space Telescope. The Large and Small Magellanic Clouds are the two biggest satellite galaxies of our home galaxy, the Milky Way, though they are still considered dwarf galaxies compared to the big spiral of the Milky Way.

In combined data from Herschel and Spitzer, the irregular distribution of dust in the Small Magellanic Cloud becomes clear. A stream of dust extends to the left in this image, known as the galaxy's "wing," and a bar of star formation appears on the right.

The colors in this image indicate temperatures in the dust that permeates the Cloud. Colder regions show where star formation is at its earliest stages or is shut off, while warm expanses point to new stars heating surrounding dust. The coolest areas and objects appear in red, corresponding to infrared light taken up by Herschel's Spectral and Photometric Imaging Receiver at 250 microns, or millionths of a meter. Herschel's Photodetector Array Camera and Spectrometer fills out the mid-temperature bands, shown here in green, at 100 and 160 microns. The warmest spots appear in blue, courtesy of 24- and 70-micron data from Spitzer.

Image Details
Date
January 10, 2012
ID
nhsc2012-001b
Type
Observation
Credit
ESA/NASA/JPL-Caltech/STScI
Object Details
Name
SMC
Small Magellanic Cloud
NGC 292
Subject | Milky Way
Galaxy Type Barred
Galaxy Size Dwarf
Nebula Type Star Formation
Distance
Lightyears 197,000
Redshift -
Constellation
Hydrus
Color Mapping
Telescope Spectral Band Color Assigment Wavelength
Spitzer (MIPS) Infrared (Mid-IR) Blue 24.0 µm
Spitzer (MIPS) Infrared (Far-IR) Cyan 70.0 µm
Herschel (PACS) Infrared (Far-IR) Green 100.0 µm
Herschel (PACS) Infrared (Far-IR) Green 160.0 µm
Herschel (SPIRE) Infrared (Far-IR) Red 250.0 µm