Grandprism

Key Facts

• Categorized as a Main-belt Asteroid
• Comparable in size to Mount Everest (2.51 km diameter)
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

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

Grandprism orbits the sun every 1,370 days (3.75 years), coming as close as 2.05 AU and reaching as far as 2.78 AU from the sun. Grandprism is about 2.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to Mount Everest.

No Close Approaches

Grandprism's orbit is 1.07 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

Grandprism's orbit is determined by observations dating back to March 16, 1980. It was last officially observed on June 25, 2023. The IAU Minor Planet Center records 1,158 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 Grandprism:

• 20 Massalia (A852 SA)
• 44 Nysa (A857 KA)
• 67 Asia (A861 HA)

References

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

Orbit Simulation

Sky Map

The position of Grandprism 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 Grandprism 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.