Hubbles Hidden Galaxy

Esahubble_potw1727a_500

esahubble_potw1727a July 3rd, 2017

Credit: ESA/Hubble & NASA

IC 342 is a challenging cosmic target. Although it is bright, the galaxy sits near the equator of the Milky Ways galactic disc, where the sky is thick with glowing cosmic gas, bright stars, and dark, obscuring dust. In order for astronomers to see the intricate spiral structure of IC 342, they must gaze through a large amount of material contained within our own galaxy no mean feat! As a result IC 342 is relatively difficult to spot and image, giving rise to its intriguing nickname: the Hidden Galaxy. Located very close (in astronomical terms!) to the Milky Way, this sweeping spiral galaxy would be among the brightest in the sky were it not for its dust-obscured location. The galaxy is very active, as indicated by the range of colours visible in this NASA/ESA Hubble Space Telescope image, depicting the very central region of the galaxy. A beautiful mixture of hot, blue star-forming regions, redder, cooler regions of gas, and dark lanes of opaque dust can be seen, all swirling together around a bright core. In 2003, astronomers confirmed this core to be a specific type of central region known as an HII nucleus a name that indicates the presence of ionised hydrogen that is likely to be creating many hot new stars.

Image Source: https://www.spacetelescope.org/images/potw1727a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
IC 342
Subject - Local Universe
Galaxy
Esahubble_potw1727a_128
 

Position Details

Position (ICRS)
RA = 3h 46m 48.5s
DEC = 68° 5’ 46.2”
Orientation
North is 10.2° CCW
Field of View
0.3 x 0.3 arcminutes
Constellation
Camelopardalis

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_purple Hubble Space Telescope (WFC3) Ultraviolet (UV) 275.0 nm
Arrow_left_blue Hubble Space Telescope (WFC3) Optical (U) 336.0 nm
Arrow_left_cyan Hubble Space Telescope (WFC3) Optical (B) 438.0 nm
Arrow_left_green Hubble Space Telescope (WFC3) Optical (y) 547.0 nm
Arrow_left_red Hubble Space Telescope (WFC3) Optical (I) 814.0 nm
Spectrum_base
Arrow_top_purple
Arrow_top_blue
Arrow_top_cyan
Arrow_top_green
Arrow_top_red
Esahubble_potw1727a_1280
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ID
potw1727a
Subject Category
C.5  
Subject Name
IC 342
Credits
ESA/Hubble & NASA
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1727a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3, WFC3
Color Assignment
Purple, Blue, Cyan, Green, Red
Band
Ultraviolet, Optical, Optical, Optical, Optical
Bandpass
UV, U, B, y, I
Central Wavelength
275, 336, 438, 547, 814
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
56.7022845061, 68.0961688721
Reference Dimension
497.0, 503.0
Reference Pixel
248.5, 251.5
Scale
-1.10656992708e-05, 1.10656992708e-05
Rotation
10.240000000000007
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1727a
Metadata Date
2016-12-09T19:26:55+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

 

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There is no distance meta data in this image.