Hipparcos
TelescopeSpinning satellite with a 29 cm telescope that viewed two patches of sky at once to measure the angles between stars.
- Launch mass
- 1,130 kg
- Dry mass
- 579 kg
- Power
- Solar
- Built by
- Matra Marconi Space
- Designator
- 1989-062B
Image: Michael Perryman · CC BY-SA 3.0 · Wikimedia Commons
- Launched
- 8 Aug 198923:25:53 UTC
- Destinations
- High Earth orbit
The first space mission devoted to measuring the positions, distances and motions of stars. It was stranded in the wrong orbit by a motor failure but still measured about 118,000 stars with high precision.
Milestones
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1990199119921993
Spacecraft
Completed
Mission details from esa.int.