The double star HD 87643

Eso_eso0928c_500

eso_eso0928c August 5th, 2009

Credit: ESO/F. Millour et al.

Observations made with ESO's Very Large Telescope Interferometer allowed a team of astronomers to discover that the star HD 87643, which lies at the centre of a dusty nebula, has a companion located about 50 times the mean Earth-Sun distance. This companion completes an orbit in a few tens of years and may be responsible for the regular ejections of material that created the nebula. By combining the light from various combinations of three of the telescopes forming the VLT array, the interferometric technique reveals details 100 times smaller than shown with the NACO adaptive optics instrument. The field of view is only 100 milli-arcseconds, or less than one third of a single WFI pixel.

Image Source: https://www.eso.org/public/images/eso0928c/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
HD 87643
Subject - Milky Way
Star

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_ Very Large Telescope Interferometer (AMBER) Infrared (K) -
Eso_eso0928c_1280
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ID
eso0928c
Subject Category
B.3  
Subject Name
HD 87643
Credits
ESO/F. Millour et al.
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0928c/
Type
Observation
Image Quality
Distance Notes
Distance unknown but estimated to be between 2 - 3 kpc.
Facility
Very Large Telescope Interferometer
Instrument
AMBER
Color Assignment
Band
Infrared
Bandpass
K
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
256.0, 256.0
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
eso0928c
Metadata Date
2009-07-30T15:16:06+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.