2011 HS

Key Facts

• Categorized as a Apollo-class Asteroid
• Comparable in size to a football field
• Will pass within 13,521,267 km of Earth in 2149
• Classified as a Near Earth Asteroid (NEA)
• Classified as a Potentially Hazardous Asteroid (PHA)
• See orbit simulation

Overview

2011 HS is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2011 HS as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2011 HS orbits the sun every 1,730 days (4.74 years), coming as close as 0.87 AU and reaching as far as 4.76 AU from the sun. Based on its brightness and the way it reflects light, 2011 HS is probably between 0.160 to 0.358 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

The rotation of 2011 HS has been observed. It completes a rotation on its axis every 6.00 hours.

Close Approaches

2011 HS's orbit is 0.05 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2011 HS has 1 close approaches predicted in the coming decades:

Images and Observations

2011 HS's orbit is determined by observations dating back to April 25, 2011. It was last officially observed on June 25, 2011. The IAU Minor Planet Center records 79 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 2011 HS:

• 266 Aline (A887 KA)
• 403 Cyane (A895 KA)
• 441 Bathilde (A898 XA)

References

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

Orbit Simulation

Sky Map

The position of 2011 HS 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 below comparison is an artistic rendering that uses available data on the diameter of 2011 HS to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.