A failed supernova?

Esahubble_potw1828a_1024

esahubble_potw1828a July 9th, 2018

Credit: ESA/Hubble & NASA

Glowing warmly against the dark backdrop of the Universe, this image from the NASA/ESA Hubble Space Telescope shows an irregular galaxy called UGC 12682. Located approximately 70 million light-years away in the constellation of Pegasus (The Winged Horse), UGC 12682 is distorted and oddly-structured, with bright pockets of star formation. In November 2008, 14-year-old Caroline Moore from New York discovered a supernova in UGC 12682. This made her the youngest person at the time to have discovered a supernova. Follow-up observations by professional astronomers of the so-called SN 2008ha showed that it was peculiarly interesting in many different ways: its host galaxy UGC 12682 rarely produces supernovae. It is one of the faintest supernovae ever observed and after the explosion it expanded very slowly, suggesting that the explosion did not release copious amounts of energy as usually expected. Astronomers have now classified SN 2008ha as a subclass of a Type Ia supernova, which is the explosion of a white dwarf that hungrily accretes matter from a companion star. SN 2008ha may have been the result of a partially failed supernova, explaining why the explosion failed to decimate the whole star.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1828a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
UGC 12682
Subject - Local Universe
Star > Type > Variable > Irregular
Esahubble_potw1828a_128
 

Position Details

Position (ICRS)
RA = 23h 34m 54.0s
DEC = 18° 13’ 38.8”
Orientation
North is 154.9° CW
Field of View
1.7 x 1.5 arcminutes
Constellation
Pegasus

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_orange Hubble Space Telescope (WFC3) Optical (V) 555.0 nm
Arrow_left_cyan Hubble Space Telescope (WFC3) Ultraviolet (UV) 275.0 nm
Spectrum_base
Arrow_top_orange
Arrow_top_cyan
Esahubble_potw1828a_1280
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ID
potw1828a
Subject Category
C.3.2.1.2  
Subject Name
UGC 12682
Credits
ESA/Hubble & NASA
Release Date
2018-07-09T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1828a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3
Color Assignment
Orange, Cyan
Band
Optical, Ultraviolet
Bandpass
V, UV
Central Wavelength
555, 275
Start Time
Integration Time
Dataset ID
None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
353.724976444, 18.2274507842
Reference Dimension
2030.0, 1857.0
Reference Pixel
1015.0, 928.0
Scale
-1.39104886252e-05, 1.39104886252e-05
Rotation
-154.85999999999993
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
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1828a
Metadata Date
2018-06-08T20:30:17+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.