NGC 2976

Spitzer_sig05-014_1024

spitzer_sig05-014 September 15th, 2005

Credit: NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team

The nearby galaxy NGC 2976, located approximately 10 million light-years away in the constellation Ursa Major near the Big Dipper, was captured by the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC). Unlike other spiral galaxies where the star-forming and dusty regions highlight spiral arms, this galaxy has a rather chaotic appearance.

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/2363-sig05-014-NGC-2976

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

Image Type
Observation
Object Name
NGC 2976
Subject - Local Universe
Galaxy > Type > Irregular
Galaxy > Activity > Starburst

Distance

Universescale2
10,000,000 light years
Spitzer_sig05-014_128
 

Position Details

Position (ICRS)
RA = 9h 47m 42.7s
DEC = 67° 54’ 55.0”
Orientation
North is 148.6° CCW
Field of View
7.9 x 7.9 arcminutes
Constellation
Ursa Major

Color Mapping

  Telescope Spectral Band Wavelength
Blue Spitzer (IRAC) Infrared (Near-IR) 3.6 µm
Green Spitzer (IRAC) Infrared (Near-IR) 4.5 µm
Red Spitzer (IRAC) Infrared (Mid-IR) 5.8 µm
Red 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.
Spectrum_base
Blue
Green
Red
Red
Spitzer_sig05-014_1280
×
ID
sig05-014
Subject Category
C.5.1.6.   C.5.3.3.  
Subject Name
NGC 2976
Credits
NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team
Release Date
2005-09-15
Lightyears
10,000,000
Redshift
0.000010
Reference Url
http://www.spitzer.caltech.edu/images/2363-sig05-014-NGC-2976
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
146.927954972, 67.9152809851
Reference Dimension
632, 632
Reference Pixel
496.604721069, 213.81060791
Scale
-0.0002086207593514, 0.0002086207593514
Rotation
148.64105852723
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
Spitzer Space Telescope
URL
http://www.spitzer.caltech.edu
Name
Spitzer Space Telescope
Email
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
sig05-014.tif
Metadata Date
2012-10-11
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

×
Universescalefull
10,000,000 light years

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