halley's comet
Halley's Comet is a periodic celestial object that orbits the Sun, appearing as a bright comet in Earth's night sky roughly every 76 years.
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Related Concepts (20)
- astronomical observations
- astronomical spacecraft
- astronomy
- celestial events
- coma (cometary)
- comet
- cometary nucleus
- deep impact (spacecraft)
- great comet
- historical sightings
- long-period comet
- meteor shower
- missions to study comets
- orbit
- perihelion
- short-period comet
- solar system
- space exploration
- spectrum analysis
- tail (comet)