Spiral Galaxy NGC 3949: A Galaxy Similar to the Milky Way

Stsci_2004-25a_1024

stsci_2004-25a August 5th, 2004

Credit: NASA, ESA and The Hubble Heritage Team (STScI/AURA); Acknowledgment: S. Smartt (The Queen's University of Belfast)

Our Sun and solar system are embedded in a broad pancake of stars deep within the disk of the Milky Way galaxy. Even from a distance, it is impossible to see our galaxy's large-scale features other than the disk. The next best thing is to look farther out into the universe at galaxies that are similar in shape and structure to our home galaxy. Other spiral galaxies like NGC 3949, pictured in the Hubble image, fit the bill. Like our Milky Way, this galaxy has a blue disk of young stars peppered with bright pink star-birth regions. In contrast to the blue disk, the bright central bulge is made up of mostly older, redder stars. NGC 3949 lies about 50 million light-years from Earth. It is a member of a loose cluster of some six or seven dozens of galaxies located in the direction of the Big Dipper, in the constellation Ursa Major (the Great Bear). It is one of the larger galaxies of this cluster. This image was created from Hubble data taken with the Wide Field Planetary Camera 2 in October 2001. Separate exposures through blue, visible, and near-infrared filters have been combined to make the natural color picture. This image was produced by the Hubble Heritage Team (STScI).

Provider: Space Telescope Science Institute

Image Source: https://hubblesite.org/contents/news-releases/2004/news-2004-25

Curator: STScI, Baltimore, MD, USA

Image Use Policy: http://hubblesite.org/copyright/

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Image Details Image Details

Image Type
Observation
Object Name
NGC 3949
Subject - Local Universe
Galaxy > Type > Spiral

Distance Details Distance

Universescale2
50,000,000 light years
Stsci_2004-25a_128
 

Position Details Position Details

Position (ICRS)
RA = 11h 53m 41.6s
DEC = 47° 51’ 21.4”
Orientation
North is 162.8° CCW
Field of View
2.0 x 1.4 arcminutes
Constellation
Ursa Major

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (WFPC2) Optical (B) 450.0 nm
Green Hubble (WFPC2) Optical (V) 606.0 nm
Red Hubble (WFPC2) Optical (I) 814.0 nm
Spectrum_base
Blue
Green
Red
Stsci_2004-25a_1280
×
ID
2004-25a
Subject Category
C.5.1.1  
Subject Name
NGC 3949
Credits
NASA, ESA and The Hubble Heritage Team (STScI/AURA); Acknowledgment: S. Smartt (The Queen's University of Belfast)
Release Date
2004-08-05T00:00:00
Lightyears
50,000,000
Redshift
50,000,000
Reference Url
https://hubblesite.org/contents/news-releases/2004/news-2004-25
Type
Observation
Image Quality
Good
Distance Notes
Distance in lightyears
Facility
Hubble, Hubble, Hubble
Instrument
WFPC2, WFPC2, WFPC2
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Optical
Bandpass
B, V, I
Central Wavelength
450, 606, 814
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
178.42346192833, 47.85594377306
Reference Dimension
1183.00, 834.00
Reference Pixel
622.81086960009, 539.90193317491
Scale
-0.00002759560, 0.00002759560
Rotation
162.76796016329
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.2 revision 218+ by the Chandra X-ray Center FITS X FITS Y EPO X EPO Y 1049.35 1084.24 651.58 293.79 900.31 1213.11 832.56 214.05 925.34 845.64 698.77 561.03 1237.06 795.60 383.74 516.10 1273.28 1055.65 426.16 256.43 935.30 1354.93 841.54 67.39 Center Pixel Coordinates: 591.50 178.42371845510 417.00 47.85940940602
Creator (Curator)
STScI
URL
http://hubblesite.org
Name
Space Telescope Science Institute Office of Public Outreach
Email
outreach@stsci.edu
Telephone
410-338-4444
Address
3700 San Martin Drive
City
Baltimore
State/Province
MD
Postal Code
21218
Country
USA
Rights
http://hubblesite.org/copyright/
Publisher
STScI
Publisher ID
stsci
Resource ID
STSCI-H-p0425a-f-1183x834.tif
Resource URL
https://mast.stsci.edu/api/latest/Download/file?uri=mast:OPO/product/STSCI-H-p0425a-f-1183x834.tif
Related Resources
http://hubblesite.org/newscenter/archive/releases/2004/25
Metadata Date
2022-07-06T00:00:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
50,000,000 light years

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