Hubble image of irregular galaxy Holmberg II

Esahubble_heic1114a_1024

esahubble_heic1114a September 29th, 2011

Credit: NASA & ESA

The NASA/ESA Hubble Space Telescope has captured this image of dwarf irregular galaxy Holmberg II. The galaxy is dominated by huge bubbles of glowing gas, which are sites of ongoing star formation. As high-mass stars form in dense regions of gas and dust they expel strong stellar winds that blow away the surrounding material. The cavities are also blown clear of gas by the shock waves produced in supernovae, the violent explosions that mark the end of the lives of massive stars.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/heic1114a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Holmberg II
Subject - Local Universe
Galaxy > Type > Irregular
Galaxy > Size > Dwarf
Esahubble_heic1114a_128
 

Position Details

Position (ICRS)
RA = 8h 19m 12.9s
DEC = 70° 42’ 49.8”
Orientation
North is 200.0° CCW
Field of View
3.1 x 3.1 arcminutes
Constellation
Ursa Major

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (ACS) Optical (I) -
Red Hubble (ACS) Optical (658) -
Green Hubble (ACS) Optical (Pseudogreen (V+I)) -
Blue Hubble (ACS) Optical (550) -
Blue Hubble (ACS) Optical (502) -
Esahubble_heic1114a_1280
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ID
heic1114a
Subject Category
C.5.1.6   C.5.2.2  
Subject Name
Holmberg II
Credits
NASA & ESA
Release Date
2011-09-29T14:30:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/heic1114a/
Type
Observation
Image Quality
Distance Notes
Distance in light years from NED
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS, ACS
Color Assignment
Red, Red, Green, Blue, Blue
Band
Optical, Optical, Optical, Optical, Optical
Bandpass
I, 658, Pseudogreen (V+I), 550, 502
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
124.803861346, 70.7138433345
Reference Dimension
3682.0, 3696.0
Reference Pixel
1841.0, 1848.0
Scale
-1.38613332371e-05, 1.38613332371e-05
Rotation
199.96000000000004
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
heic1114a
Metadata Date
2011-08-11T10:19:49+02:00
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.

 

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