A galactic cloak for an exploding star

Esahubble_potw1508a_1024

esahubble_potw1508a February 23rd, 2015

Credit: ESA/Hubble & NASAAcknowledgement: Gilles Chapdelaine

The galaxy pictured here is NGC 4424, located in the constellation of Virgo. It is not visible with the naked eye but has been captured here with the NASA/ESA Hubble Space Telescope. Although it may not be obvious from this image, NGC 4424 is in fact a spiral galaxy. In this image it is seen more or less edge on, but from above you would be able to see the arms of the galaxy wrapping around its centre to give the characteristic spiral form . In 2012 astronomers observed a supernova in NGC 4424 a violent explosion marking the end of a stars life. During a supernova explosion, a single star can often outshine an entire galaxy. However, the supernovain NGC 4424, dubbed SN 2012cg, cannot be seen here as the image was taken ten years prior to the explosion. Along the central region of the galaxy, clouds of dust block the light from distant stars and create dark patches. To the left of NGC 4424 there are two bright objects in the frame. The brightest is another, smaller galaxy known as LEDA 213994 and the object closer to NGC 4424 is an anonymous star in our Milky Way. A version of this image was entered into the Hubble's Hidden Treasures image processing competition by contestant Gilles Chapdelaine.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1508a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
NGC 4424
Subject - Local Universe
Galaxy > Type > Spiral
Esahubble_potw1508a_128
 

Position Details Position Details

Position (ICRS)
RA = 12h 27m 11.3s
DEC = 9° 25’ 14.8”
Orientation
North is 67.3° CW
Field of View
1.6 x 1.5 arcminutes
Constellation
Virgo

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Orange Hubble (WFPC2) Infrared (I) 814.0 nm
Cyan Hubble (WFPC2) Optical (V) 606.0 nm
Spectrum_base
Orange
Cyan
Esahubble_potw1508a_1280
×
ID
potw1508a
Subject Category
C.5.1.1  
Subject Name
NGC 4424
Credits
ESA/Hubble & NASAAcknowledgement: Gilles Chapdelaine
Release Date
2015-02-23T10:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1508a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope
Instrument
WFPC2, WFPC2
Color Assignment
Orange, Cyan
Band
Infrared, Optical
Bandpass
I, V
Central Wavelength
814, 606
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
186.797189709, 9.42076962556
Reference Dimension
940.0, 921.0
Reference Pixel
470.0, 460.0
Scale
-2.7824301275e-05, 2.7824301275e-05
Rotation
-67.320000000000064
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
potw1508a
Metadata Date
2014-07-31T18:30:30+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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