Key Facts

Overview

Martak is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Martak as potentially hazardous because its orbit does not bring it close to Earth.

Martak orbits the sun every 2,860 days (7.83 years), coming as close as 2.72 AU and reaching as far as 5.16 AU from the sun. Martak is about 18.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Philadelphia.

The rotation of Martak has been observed. It completes a rotation on its axis every 5.64 hours.

No Close Approaches

Martak's orbit is 1.72 AU from Earth's orbit at its closest point. This means that there is an extremely 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

Martak's orbit is determined by observations dating back to Oct. 14, 1979. It was last officially observed on May 14, 2023. The IAU Minor Planet Center records 1,879 observations used to determine its orbit.

Accessibility and Exploration

This asteroid 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 Martak:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.941 AU
  • Eccentricity: 0.31
  • Inclination: 2.9°
  • Longitude of Ascending Node: 256.3°
  • Argument of Periapsis: 101.87°
  • Mean Anomaly: 231.53°

Physical Characteristics

  • Diameter: 18.02600 km
  • Magnitude: 12.68
  • Albedo: 0.079

Derived Characteristics

  • Orbit Period: 2,860 days (7.83 years)
  • Avg. Orbit Speed: 14.99 km/s
  • Aphelion Distance: 5.16 AU
  • Perihelion Distance: 2.72 AU
  • Rotation Period: 5.64 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Martak 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.