Key Facts


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

Delores orbits the sun every 1,150 days (3.15 years), coming as close as 1.93 AU and reaching as far as 2.38 AU from the sun. Delores is about 5.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Delores has been observed. It completes a rotation on its axis every 88.15 hours.

No Close Approaches

Delores's orbit is 0.93 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

Delores's orbit is determined by observations dating back to Sept. 28, 1952. It was last officially observed on Aug. 7, 2021. The IAU Minor Planet Center records 3,051 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 Delores:



   or view a random object

Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 2.154 AU
  • Eccentricity: 0.1028
  • Inclination: 4.25°
  • Longitude of Ascending Node: 106.36°
  • Argument of Periapsis: 235.29°
  • Mean Anomaly: 301.99°

Physical Characteristics

  • Diameter: 5.76100 km
  • Magnitude: 13.63
  • Albedo: 0.193

Derived Characteristics

  • Orbit Period: 1,150 days (3.15 years)
  • Avg. Orbit Speed: 20.38 km/s
  • Aphelion Distance: 2.38 AU
  • Perihelion Distance: 1.93 AU
  • Rotation Period: 88.15 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Delores 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 Delores 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.