There is no comet that comes every 1000 years. Comets have varying orbital periods, ranging from a few years to millions of years.
While some comets have long orbital periods, like Hale-Bopp (estimated period of 2,533 years), they don't have exact, predictable intervals.
Comets' orbits are affected by gravitational forces from planets and the sun, leading to slight variations in their periods.
Here are some examples of comets with long orbital periods:
- Comet Halley: This famous comet has a period of about 76 years.
- Comet McNaught: This comet had a period of about 90,000 years.
- Comet Lovejoy: This comet has a period of about 8,000 years.
