A dwarf galaxy with a halo

Eso_eso9633a_1024

eso_eso9633a August 1st, 1996

Credit: ESO

This photo is a reproduction from a combination of two CCD frames observed with the 3.5-m New Technology Telescope (NTT) and the ESO Multi-Mode Instrument (EMMI). The field covers an area of approx. 7.8 x 11.5 arcmin.In the lower part is seen the WLM dwarf galaxy, fully resolved into individual stars. From these observations, this galaxy has now been found to possess an extended halo of which many stars can be perceived in the upper part of the field. A few background galaxies that are unrelated to WLM are also visible. At the distance of WLM, about 3 million light years, the field corresponds to a projected area of about 10,000 x 6,000 light years.The frames were observed in the near-infrared I-band and each exposure lasted about 45 minutes. The seeing was about 0.9 arcsec, and the faintest stars that are visible have an I-band magnitude of 24. In this reproduction, North is to the left and East is down.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso9633a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
Galaxy
Subject - Local Universe
Galaxy > Size > Dwarf
Galaxy > Component > Halo

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Grayscale NTT (EMMI) Infrared (I) -
Eso_eso9633a_1280
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ID
eso9633a
Subject Category
C.5.2.2   C.5.4.4  
Subject Name
Galaxy
Credits
ESO
Release Date
1996-08-01T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso9633a/
Type
Observation
Image Quality
Distance Notes
Facility
New Technology Telescope
Instrument
EMMI
Color Assignment
Grayscale
Band
Infrared
Bandpass
I
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
1648.0, 2442.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.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
European Southern Observatory
Publisher ID
eso
Resource ID
eso9633a
Metadata Date
2010-02-10T14:52:47+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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