Sekiguchi

Key Facts

• Categorized as a Main-belt Asteroid
• Comparable in size to the city of Cleveland, Ohio (13.95 km diameter)
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

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

Sekiguchi orbits the sun every 1,890 days (5.17 years), coming as close as 2.69 AU and reaching as far as 3.29 AU from the sun. Sekiguchi is about 13.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.

The rotation of Sekiguchi has been observed. It completes a rotation on its axis every 5.41 hours.

No Close Approaches

Sekiguchi's orbit is 1.71 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

Sekiguchi's orbit is determined by observations dating back to Feb. 11, 1950. It was last officially observed on June 16, 2023. The IAU Minor Planet Center records 4,271 observations used to determine its orbit.

Scientists have been able to determine this object's shape:

View asteroid Sekiguchi in 3D.

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 Sekiguchi:

• 61 Danae (A860 RC)
• 117 Lomia (A871 RB)
• 150 Nuwa (A875 UA)

References

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

Orbit Simulation

Sky Map

The position of Sekiguchi 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.