Ellenmacarthur

Key Facts

• Categorized as a Inner Main-belt Asteroid
• Comparable in size to Mount Everest
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

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

Ellenmacarthur orbits the sun every 1,010 days (2.77 years), coming as close as 1.85 AU and reaching as far as 2.08 AU from the sun. Based on its brightness and the way it reflects light, Ellenmacarthur is probably between 1.789 to 4.000 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

Ellenmacarthur's orbit is 0.90 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

Ellenmacarthur's orbit is determined by observations dating back to March 2, 1993. It was last officially observed on April 15, 2023. The IAU Minor Planet Center records 1,288 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 Ellenmacarthur:

• 1025 Riema (A923 PG)
• 1876 Napolitania (1970 BA)
• 3101 Goldberger (1978 GB)

References

• JPL Small Body Database
• Mission Design
• Sky Finder Chart

Orbit Simulation

Sky Map

The position of Ellenmacarthur 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 Ellenmacarthur 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.