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An artist's conception of the Granat spacecraft.

An artist's conception of the Granat spacecraft. (Credit: Soviet Space Program)

Lifetime: December 1989 - November 1998

Country (primary): Soviet Union

Primary Science

Granat was a dedicated X-ray and gamma-ray astronomical observatory designed to study high-energy emission from galactic and extra-galactic sources.

Science Highlights

  • Deep imaging of the galactic center region
  • Discovery of electron-positron annihilation lines from a micro-quasar and an X-ray nova
  • Study of the spectra and time variability of black hole candidates
  • Detection of a number of gamma-ray bursts

Links to more information


A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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