Estremadoyro

5416 Estremadoyro (1978 VE5)

Space Reference » Main-belt Asteroids » Estremadoyro

Key Facts

Overview

Estremadoyro is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Estremadoyro as potentially hazardous because its orbit does not bring it close to Earth.

Estremadoyro orbits the sun every 1,700 days (4.65 years), coming as close as 2.13 AU and reaching as far as 3.43 AU from the sun. Estremadoyro is about 19.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Philadelphia.

The rotation of Estremadoyro has been observed. It completes a rotation on its axis every 20.75 hours.

Estremadoyro's spectral type None (Tholen) / C (SMASSII) indicates that it is likely to contain water, iron, nickel, cobalt, nitrogen, and ammonia.

No Close Approaches

Estremadoyro's orbit is 1.15 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

Estremadoyro's orbit is determined by observations dating back to Jan. 4, 1970. It was last officially observed on July 5, 2023. The IAU Minor Planet Center records 3,298 observations used to determine its orbit.

Scientists have been able to determine this object's shape:

View asteroid Estremadoyro in 3D.

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 Estremadoyro:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.784 AU
  • Eccentricity: 0.2338
  • Inclination: 8.39°
  • Longitude of Ascending Node: 66.64°
  • Argument of Periapsis: 285.86°
  • Mean Anomaly: 284.68°

Physical Characteristics

  • Diameter: 19.00600 km
  • Magnitude: 13.01
  • Albedo: 0.036
  • Spectral type (SMASS): C

Derived Characteristics

  • Orbit Period: 1,700 days (4.65 years)
  • Avg. Orbit Speed: 17.82 km/s
  • Aphelion Distance: 3.43 AU
  • Perihelion Distance: 2.13 AU
  • Rotation Period: 20.75 hours
  • Approx. Composition: water, iron, nickel, cobalt, nitrogen, and ammonia.

Map Comparison

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Orbit Simulation

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Sky Map

The position of Estremadoyro 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.