Key Facts

Overview

22P/Kopff is a small comet whose orbit features a relatively short period, low inclination, and is controlled by Jupiter's gravitational effects. NASA JPL has not classified 22P/Kopff as potentially hazardous because its orbit does not bring it close to Earth.

22P/Kopff orbits the sun every 2,350 days (6.43 years), coming as close as 1.58 AU and reaching as far as 5.34 AU from the sun. 22P/Kopff is about 3.0 kilometers in diameter, making it larger than most asteroids, comparable in size to the island of Manhattan.

No Close Approaches

22P/Kopff's orbit is 0.56 AU from Earth's orbit at its closest point. This means that there is an very wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

22P/Kopff's orbit is determined by observations dating back to Dec. 19, 2001. It was last officially observed on Nov. 29, 2016. The IAU Minor Planet Center records 3,705 observations used to determine its orbit.

Accessibility and Exploration

This comet is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 22P/Kopff:

References

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Orbital Elements

  • Epoch: 2455518.5 JD
  • Semi-major axis: 3.45906912445 AU
  • Eccentricity: 0.54421289488
  • Inclination: 4.72364225018°
  • Longitude of Ascending Node: 120.880553386°
  • Argument of Periapsis: 162.74226065°
  • Mean Anomaly: 82.9997671025°

Physical Characteristics

  • Diameter: 3.00000 km
  • Magnitude: 12.0
  • Albedo: 0.05

Derived Characteristics

  • Orbit Period: 2,350 days (6.43 years)
  • Avg. Orbit Speed: 16.01 km/s
  • Aphelion Distance: 5.34 AU
  • Perihelion Distance: 1.58 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 22P/Kopff is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.