Tanina

825 Tanina (A916 FH)

Space Reference » Main-belt Asteroids » Tanina

Key Facts

Overview

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

Tanina orbits the sun every 1,210 days (3.31 years), coming as close as 2.06 AU and reaching as far as 2.39 AU from the sun. Tanina is about 13.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.

The rotation of Tanina has been observed. It completes a rotation on its axis every 6.94 hours.

Tanina's spectral type SR (Tholen) / S (SMASSII) indicates that it is likely to contain and .

No Close Approaches

Tanina's orbit is 1.05 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

Tanina's orbit is determined by observations dating back to Oct. 17, 1904. It was last officially observed on July 3, 2023. The IAU Minor Planet Center records 6,957 observations used to determine its orbit.

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

View asteroid Tanina 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 Tanina:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.226 AU
  • Eccentricity: 0.075
  • Inclination: 3.4°
  • Longitude of Ascending Node: 101.4°
  • Argument of Periapsis: 111.03°
  • Mean Anomaly: 109.58°

Physical Characteristics

  • Diameter: 13.42300 km
  • Magnitude: 11.69
  • Albedo: 0.275
  • Spectral type (Tholen): SR
  • Spectral type (SMASS): S

Derived Characteristics

  • Orbit Period: 1,210 days (3.31 years)
  • Avg. Orbit Speed: 20.01 km/s
  • Aphelion Distance: 2.39 AU
  • Perihelion Distance: 2.06 AU
  • Rotation Period: 6.94 hours
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

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Sky Map

The position of Tanina 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.