Halley's Comet

Comet

The most famous periodic comet, visible from Earth roughly every 76 years.

Facts

TypeComet
Distance from the Sun17.80 AU
Diameter11 km
Mass2.20 × 10^14 kg
Temperature-207°C
Orbital period27,740 days
Rotation period52.8 hours
Apparent magnitude2.4
Redshift0
Discovered1705
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