Granat

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

• Granat on HEASARC
• Granat on wikipedia