A spattering of blue

Esahubble_potw1436a_1024

esahubble_potw1436a September 8th, 2014

Credit: ESA/Hubble, NASA, D. Calzetti (UMass) and the LEGUS Team

Far beyond the stars in the constellation of Leo (The Lion) is irregular galaxy IC 559. IC 559 is not your everyday galaxy. With its irregular shape and bright blue spattering of stars, it is a fascinating galactic anomaly. It may look like sparse cloud, but it is in fact full of gas and dust which is spawning new stars. Discovered in 1893, IC 559 lacks the symmetrical spiral appearance of some of its galactic peers and not does not conform to a regular shape. It is actually classified as a type Sm galaxy an irregular galaxy with some evidence for a spiral structure. Irregular galaxies make up about a quarter of all known galaxies and do not fall into any of the regular classes of the Hubble sequence. Most of these uniquely shaped galaxies were not always so IC 559 may have once been a conventional spiral galaxy that was then distorted and twisted by the gravity of a nearby cosmic companion. This image, captured by the NASA/ESA Hubble Space Telescopes Wide Field Camera 3, combines a wide range of wavelengths spanning the ultraviolet, optical, and infrared parts of the spectrum.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1436a/

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
IC 559
Subject - Local Universe
Galaxy > Type > Irregular
Esahubble_potw1436a_128
 

Position Details Position Details

Position (ICRS)
RA = 9h 44m 43.9s
DEC = 9° 36’ 58.5”
Orientation
North is 138.4° CW
Field of View
1.1 x 1.1 arcminutes
Constellation
Leo

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Purple Hubble (WFC3) Ultraviolet (UV) 275.0 nm
Blue Hubble (WFC3) Ultraviolet (U) 336.0 nm
Blue Hubble (WFC3) Optical (B) 438.0 nm
Green Hubble (WFC3) Optical (V) 555.0 nm
Red Hubble (WFC3) Infrared (I) 814.0 nm
Spectrum_base
Purple
Blue
Blue
Green
Red
Esahubble_potw1436a_1280
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ID
potw1436a
Subject Category
C.5.1.6  
Subject Name
IC 559
Credits
ESA/Hubble, NASA, D. Calzetti (UMass) and the LEGUS Team
Release Date
2014-09-08T10:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1436a/
Type
Observation
Image Quality
Distance Notes
not on NED
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, Blue, Green, Red
Band
Ultraviolet, Ultraviolet, Optical, Optical, Infrared
Bandpass
UV, U, B, V, I
Central Wavelength
275, 336, 438, 555, 814
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
146.183068812, 9.61624836856
Reference Dimension
1692.0, 1631.0
Reference Pixel
846.0, 815.0
Scale
-1.10130256706e-05, 1.10130256706e-05
Rotation
-138.43999999999988
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
potw1436a
Metadata Date
2014-03-12T09:28:01+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.

 

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