The orbit of Theta1 Orionis C

Eso_eso0906d_500

eso_eso0906d February 18th, 2009

Credit: ESO/S.Kraus et al., M.McCaughrean et al. (AIP)

The first VLTI image is that of the double star Theta1 Orionis C in the Orion Nebula Trapezium. From these, and several other observations, the team of astronomers, led by Stefan Kraus and Gerd Weigelt from the Max-Planck Institute in Bonn, could obtain the full orbit of the two stars in the system, and derive the total mass of the two stars (47 solar masses) and their distance from us (1350 light-years).This montage shows a wide-view of the Orion Nebula as seen with ISAAC on ESOs Very Large Telescope, a zoom of the Trapezium obtained with the NASA/ESA Hubble Space Telescope, and the orbit derived by the astronomers, using several facilities over 11 years. The VLTI images created for this system have an extraordinary spatial resolution of about 2 milli-arcseconds.

Image Source: https://www.eso.org/public/images/eso0906d/

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
Messier 42 Theta1 Orionis C
Subject - Milky Way
Star » Type » Variable
Nebula » Type » Star Formation

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_ Very Large Telescope (ISAAC) (J) -
Arrow_left_ Very Large Telescope (ISAAC) (H) -
Arrow_left_ Very Large Telescope (ISAAC) (K) -
Arrow_left_ Hubble Space Telescope (None) -
Eso_eso0906d_1280
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ID
eso0906d
Subject Category
B.3.2.1.6   B.4.1.2  
Subject Name
Messier 42, Theta1 Orionis C
Credits
ESO/S.Kraus et al., M.McCaughrean et al. (AIP)
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0906d/
Type
Observation
Image Quality
Distance Notes
Distance in light years from ESO.
Facility
Very Large Telescope, Very Large Telescope, Very Large Telescope, Hubble Space Telescope
Instrument
ISAAC, ISAAC, ISAAC, None
Color Assignment
Band
Bandpass
J, H, K, -
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
2640.0, 2002.0
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
eso0906d
Metadata Date
2009-02-18T10:09:46+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.