Scorpius X-1

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About this Image

This is a frame from a "movie" of the binary-star system Scorpius X-1, more than 9,000 light-years from Earth. Made using a world-wide collection of radio telescopes, this movie covers 56 hours during June of 1999. In the movie, the numbers along the edges of the frame are distances in billions of miles. The zero point is the location of the binary-star system containing a superdense neutron star and a "normal" star about the size of the Sun. The original images were made about 50 minutes apart, and additional images were generated by interpolation to produce a movie of 231 frames.

Investigator(s):  Ed Fomalont, Barry Geldzahler, and Charles Bradshaw

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Technical Data

    Telescope other 
    Date of Observation 1999-06-13 
    Type of Observation Continuum Observations 
    Center of Image RA: 16:19:55.10, Dec: -15:38:25.00 (J2000)  
    Field of View 0.0000 x 0.0000 degrees  
    Technical Caption The observations consist of seven consecutive 8hr VLBI observations cycling among three different arrays: the VLBA with the VLA; the APT (Asia-Pacific Telescope: Australian Telescope Compact Array, Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes and Shanghai); and the EVN (European VLBI Network: Effelsberg, Jodrell Bank, Medicina, Noto, Westerbork, plus Hartebeesthoek and the Green Bank 140ft).  

  • Astronomical database entries for Sco X-1
    • Query SIMBAD for more Sco X-1 data


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