Deira

Key Facts

• Categorized as a Main-belt Asteroid
• Comparable in size to the city of New York (31.80 km diameter)
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

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

Deira orbits the sun every 1,310 days (3.59 years), coming as close as 2.12 AU and reaching as far as 2.57 AU from the sun. Deira is about 31.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of New York.

The rotation of Deira has been observed. It completes a rotation on its axis every 210.60 hours.

No Close Approaches

Deira's orbit is 1.14 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

Deira's orbit is determined by observations dating back to Oct. 7, 1908. It was last officially observed on July 4, 2023. The IAU Minor Planet Center records 3,802 observations used to determine its orbit.

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

View asteroid Deira 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 Deira:

• 27 Euterpe (A853 VA)
• 219 Thusnelda (A880 SA)
• 220 Stephania (A881 KA)

References

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

Orbit Simulation

Sky Map

The position of Deira 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.