Ryan

Key Facts

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

Overview

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

Ryan orbits the sun every 1,240 days (3.39 years), coming as close as 2.03 AU and reaching as far as 2.48 AU from the sun. Based on its brightness and the way it reflects light, Ryan is probably between 1.943 to 4.346 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

Ryan's orbit is 1.01 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

Ryan's orbit is determined by observations dating back to Jan. 10, 1994. It was last officially observed on Nov. 11, 2022. The IAU Minor Planet Center records 1,484 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 Ryan:

• 336 Lacadiera (A892 SA)
• 525 Adelaide (A908 UJ)
• 574 Reginhild (A905 SH)

References

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

Orbit Simulation

Sky Map

The position of Ryan 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 Ryan 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.