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| NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team |
NGC 1566
This beautiful spiral galaxy NGC 1566, located approximately 60 million light-years away in the constellation Dorado was captured by the Spitzer Infrared Nearby Galaxies Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC).
The faint blue light is coming from mature stars, while the "glowing" red spiral arms indicate active star formation and dust emission. Much of the active star formation is seen in the two symmetric arms that are reminiscent of other grand design spirals such as the Whirlpool galaxy. The small and very luminous blue nucleus suggests that this is a Seyfert galaxy (a galaxy that is actively emitting radiation from a very small region in its core).
The SINGS image is a four-channel false-color composite, where blue indicates emission at 3.6 microns, green corresponds to 4.5 microns, and red to 5.8 and 8.0 microns. The contribution from starlight (measured at 3.6 microns) in this picture has been subtracted from the 5.8 and 8 micron images to enhance the visibility of the dust features.
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| About the Object (1) | | Object name: | NGC 1566 | | Object type: | Spiral galaxy | | Position (J2000): | RA: 04h 20m 0.40s Dec: -54° 56' 16.00" | | Distance: | 60 million light-years | | Constellation: | Dorado |
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About the Data
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Spitzer Data
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| Image Credit: | NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team | | Instrument: | IRAC | | Wavelength: | 3.6 (blue), 4.5 (green), 5.8-8.0 (red) microns | | Image scale: | 12.2x12.2 arcmin | | Orientation: | North is 123 deg CW from up | | Release Date: | 2005/09/15 |
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Observers
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Robert Kennicutt, Principal Investigator (Steward Observatory, University of Arizona)
Lee Armus (Spitzer Science Center, Caltech)
Brent Buckalew (Caltech)
George Bendo (Steward Observatory, University of Arizona)
Daniela Calzetti (Space Telescope Science Institute)
Daniel Dale (University of Wyoming)
Bruce Draine (Princeton University)
Charles Engelbracht (Steward Observatory, University of Arizona)
Karl Gordon (Steward Observatory, University of Arizona)
George Helou (Caltech)
David Hollenbach (NASA Ames Research Center)
Thomas Jarrett (Caltech)
Lisa Kewley (University of Hawaii)
Claus Leitherer (Space Telescope Science Institute)
Aigen Li (University of Missouri-Columbia)
Sangeeta Malhotra (Space Telescope Science Institute)
Helene McLaughlin (Space Telescope Science Institute)
Martin Meyer (Space Telescope Science Institute)
Eric Murphy (Yale University)
Michael Regan (Space Telescope Science Institute)
George Rieke (Steward Observatory, University of Arizona)
Marcia Rieke (Steward Observatory, University of Arizona)
Helene Roussel (Spitzer Science Center, Caltech)
Kartik Sheth (Caltech)
John-David Smith (Steward Observatory, University of Arizona)
Michele D. Thornley (Bucknell University, Space Telescope Science Institute)
Fabian Walter (MPIA Heidelberg) |
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