NGC 7793
spitzer_sig05-017 September 15th, 2005
Credit: NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS legacy team
Galaxy NGC 7793, located approximately 10 million light-years away, is a member of the Sculptor group of galaxies. This galaxy cluster, named after the constellation in which it resides, is one of the closest to our own Local Group of galaxies. This image was captured as part of the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC).
As the "glowing" red emission maps out, Spitzer is able to pierce through dense clouds of gas and dust that comprise the spiral disk, revealing new star formation that is driving the evolution of the galaxy.
The SINGS image is a four channel 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.
Provider: Spitzer Space Telescope
Image Source: http://www.spitzer.caltech.edu/images/2371-sig05-017-NGC-7793
Curator: Spitzer Space Telescope, Pasadena, CA, USA
Image Use Policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
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Image Details
Distance
Position Details
Color Mapping
| Telescope | Spectral Band | Wavelength | |
|---|---|---|---|
|
Spitzer (IRAC) | Infrared (Near-IR) | 3.6 µm |
|
Spitzer (IRAC) | Infrared (Near-IR) | 4.5 µm |
|
Spitzer (IRAC) | Infrared (Mid-IR) | 5.8 µm |
|
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Spitzer (IRAC) | Infrared (Mid-IR) | 8.0 µm |
| The contribution from starlight has been subtracted from the 5.8 and 8.0 micron channels to enhance the visibility of dust features. | |||
- ID
- sig05-017
- Subject Category
- C.5.1.1. C.5.3.3
- Subject Name
- NGC 7793
- Credits
- NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS legacy team
- Release Date
- 2005-09-15
- Lightyears
- 10,000,000
- Redshift
- 0.000757
- Reference Url
- http://www.spitzer.caltech.edu/images/2371-sig05-017-NGC-7793
- Type
- Observation
- Image Quality
- Good
- Distance Notes
- Distance from Quickfacts. Redshift from NED 2008/11/11
- Facility
- Spitzer, Spitzer, Spitzer, Spitzer
- Instrument
- IRAC, IRAC, IRAC, IRAC
- Color Assignment
- Blue, Green, Red, Red
- Band
- Infrared, Infrared, Infrared, Infrared
- Bandpass
- Near-IR, Near-IR, Mid-IR, Mid-IR
- Central Wavelength
- 3600, 4500, 5800, 8000
- Start Time
- Integration Time
- Dataset ID
- Notes
- T
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 359.437714616, -32.6868311765
- Reference Dimension
- 990, 990
- Reference Pixel
- 220.051364899, 870.036046982
- Scale
- -0.00020908552099377, 0.00020908552099377
- Rotation
- -152.64294901139
- Coordinate System Projection:
- TAN
- Quality
- Full
- FITS Header
- Notes
- Creator (Curator)
- Spitzer Space Telescope
- URL
- http://www.spitzer.caltech.edu
- Name
- Spitzer Space Telescope
- Telephone
- Address
- 1200 E. California Blvd.
- City
- Pasadena
- State/Province
- CA
- Postal Code
- 91125
- Country
- USA
- Rights
- http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
- Publisher
- Spitzer Science Center
- Publisher ID
- spitzer
- Resource ID
- sig05-017.tif
- Resource URL
- http://www.spitzer.caltech.edu/uploaded_files/images/0001/3501/sig05-017.tif
- Related Resources
- Metadata Date
- 2012-10-11
- Metadata Version
- 1.1
Detailed color mapping information coming soon...
