Key Facts

Overview

Mount Stromlo is a mid-sized asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Mount Stromlo as potentially hazardous because its orbit does not bring it close to Earth.

Mount Stromlo orbits the sun every 1,290 days (3.53 years), coming as close as 1.51 AU and reaching as far as 3.14 AU from the sun. Mount Stromlo is about 3.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.

No Close Approaches

Mount Stromlo's orbit is 0.62 AU from Earth's orbit at its closest point. This means that there is a 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

Mount Stromlo's orbit is determined by observations dating back to March 19, 1955. It was last officially observed on July 1, 2023. The IAU Minor Planet Center records 2,536 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 Mount Stromlo:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.325 AU
  • Eccentricity: 0.3523
  • Inclination: 25.43°
  • Longitude of Ascending Node: 85.63°
  • Argument of Periapsis: 303.86°
  • Mean Anomaly: 207.48°

Physical Characteristics

  • Diameter: 3.84700 km
  • Magnitude: 13.69
  • Albedo: 0.398

Derived Characteristics

  • Orbit Period: 1,290 days (3.53 years)
  • Avg. Orbit Speed: 19.61 km/s
  • Aphelion Distance: 3.14 AU
  • Perihelion Distance: 1.51 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Mount Stromlo 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of Mount Stromlo to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.