314212 (2005 NJ1)

Small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 314212 (2005 NJ1)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 18,942,884 km of Earth in 2033
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

314212 (2005 NJ1) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 NJ1 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 NJ1 orbits the sun every 1,140 days (3.12 years), coming as close as 0.74 AU and reaching as far as 3.52 AU from the sun. Based on its brightness and the way it reflects light, 2005 NJ1 is probably between 0.514 to 1.148 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2005 NJ1's orbit is 0.02 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.

2005 NJ1 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 11, 2033 18,942,884 20.570
Aug. 9, 2061 27,162,208 22.143
Aug. 13, 2089 17,242,763 20.146
Jan. 18, 2124 17,510,436 20.238
Jan. 18, 2152 18,861,748 20.385
Jan. 17, 2180 14,111,723 19.587

Images and Observations

2005 NJ1's orbit is determined by observations dating back to July 2, 2005. It was last officially observed on Jan. 29, 2012. The IAU Minor Planet Center records 179 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 2005 NJ1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.132 AU
  • Eccentricity: 0.651
  • Inclination: 6.46°
  • Longitude of Ascending Node: 316.17°
  • Argument of Periapsis: 82.59°
  • Mean Anomaly: 279.13°

Physical Characteristics

  • Diameter: ~0.663 km
  • Magnitude: 18.57

Derived Characteristics

  • Orbit Period: 1,140 days (3.12 years)
  • Avg. Orbit Speed: 20.35 km/s
  • Aphelion Distance: 3.52 AU
  • Perihelion Distance: 0.74 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 314212 (2005 NJ1) 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 2005 NJ1 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.