The Fireworks Galaxy (NGC 6946)

Spitzer_sig08-008_1024

spitzer_sig08-008 June 23rd, 2008

Credit: NASA/JPL-Caltech/R. Kennicutt (U. of Ariz./Inst. of Astr., U. of Cambridge) and the SINGS Team

NGC 6946, or "The Fireworks Galaxy", is one of about a dozen nearby neighbors to the Milky Way. It is located approximately 10 million light-years away in the Cepheus constellation. This image was captured as part of the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC).

The "glowing" red emission reveals regions in the galaxy that are actively forming new stars. The blue dots sprinkled along this image are Milky Way stars along this line of sight.

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.

Provider: Spitzer Space Telescope

Image Source: http://www.spitzer.caltech.edu/images/2078-sig08-008-The-Fireworks-Galaxy-NGC-6946-

Curator: Spitzer Space Telescope, Pasadena, CA, USA

Image Use Policy: Public Domain

Image Details Image Details

Image Type
Observation
Object Name
Fireworks Galaxy NGC 6946
Subject - Local Universe
Galaxy > Type > Spiral

Distance Details Distance

Universescale2
18,000,000 light years
Spitzer_sig08-008_128
 

Position Details Position Details

Position (ICRS)
RA = 20h 34m 52.3s
DEC = 60° 9’ 15.6”
Orientation
North is 394.9° CCW
Field of View
11.9 x 17.8 arcminutes
Constellation
Cygnus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Spitzer (IRAC) Infrared (Near-IR) 3.6 µm
Green Spitzer (IRAC) Infrared (Near-IR) 4.5 µm
Orange Spitzer (IRAC) Infrared (Mid-IR) 5.8 µm
Red Spitzer (IRAC) Infrared (Mid-IR) 8.0 µm
Spectrum_base
Blue
Green
Orange
Red
Spitzer_sig08-008_1280
×
ID
sig08-008
Subject Category
C.5.1.1.  
Subject Name
Fireworks Galaxy, NGC 6946
Credits
NASA/JPL-Caltech/R. Kennicutt (U. of Ariz./Inst. of Astr., U. of Cambridge) and the SINGS Team
Release Date
2008-06-23
Lightyears
18,000,000
Redshift
0.00016
Reference Url
http://www.spitzer.caltech.edu/images/2078-sig08-008-The-Fireworks-Galaxy-NGC-6946-
Type
Observation
Image Quality
Good
Distance Notes
Distance from fast facts;NED
Facility
Spitzer, Spitzer, Spitzer, Spitzer
Instrument
IRAC, IRAC, IRAC, IRAC
Color Assignment
Blue, Green, Orange, 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
2144., 2144., 2144., 2144.
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
308.71792558912324, 60.154339214321304
Reference Dimension
954, 1423
Reference Pixel
477, 711.5
Scale
-0.00020811071391397163, 0.00020811071391397163
Rotation
394.91294996
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
Spitzer Space Telescope
URL
http://www.spitzer.caltech.edu
Name
Email
Telephone
Address
1200 E. California Blvd.
City
Pasadena
State/Province
CA
Postal Code
91125
Country
USA
Rights
Public Domain
Publisher
Spitzer Science Center
Publisher ID
spitzer
Resource ID
sig08-008.tif
Metadata Date
2011-09-02
Metadata Version
1.1
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Detailed color mapping information coming soon...

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Universescalefull
18,000,000 light years

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