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43 examples of Asteroids in our universe

The word asteroid means ” stellar figure “. An asteroid is a body smaller than a planet and larger than a meteorite. It can be rocky, carbonaceous or metallic. The asteroids revolve around the sun and its orbit is internal to that of Neptune. That is, they belong to the Solar System.

Most of the asteroids are in a strip between the orbits of Mars and Jupiter, known as the asteroid belt. However, there are also other asteroids close to Jupiter and a large number that crosses the orbits of the other planets.

The size of the asteroids is very variable. The largest known is 1,000 kilometers, while other asteroids are ten meters. Ceres is the largest asteroid.

Its shape is relatively spherical.

Rarely, asteroids can be seen with the naked eye from Earth. However, this is possible in the cases of some asteroids close to our planet, in addition to Vesta, an asteroid of more than 500 kilometers, located in the main belt.

Asteroids can be classified according to different parameters:

  • Location : its relative position with respect to the sun and the planets. This distance is measured in Astronomical Units (AU). One AU is equivalent to the average distance between the Earth and the sun.
  • Composition : it is determined thanks to absorption spectra.
  • Grouping : based on the values of: semimajor axis, eccentricity, and inclination of the orbit.

To study the asteroids and other celestial bodies a measure called “absolute magnitude” is used, which is the apparent magnitude that would have a distance of 10 parsecs in a completely empty space. This measure is used because it is directly related to the luminosity of the celestial bodies, regardless of the distance, they are from the Earth. Therefore, in some cases, some specific data on some asteroids (such as diameter) have not been discovered, but its absolute magnitude is always known.

Examples of asteroids

  1. Apophis (also called 2004 MN4) (asteroid Aton: distance from the sun less than 1 AU). Discovered in 2004. Absolute magnitude: 19.7. Diameter: 0.325 km.
  2. Apollo (distance of the sun greater than 1 AU, and crosses Earth’s orbit) Discovered in 1932. Absolute magnitude: 16.25. Diameter: 1.5
  3. Bohlinia (main belt asteroid) Of the coronis family. Discovered in 1911. Absolute magnitude: 9.6. Diameter: 33.73 km.
  4. Ceres (asteroid of the main belt). Discovered in 1801. Absolute magnitude: 3.34.
  5. Claudia (asteroid of the main belt) Discovered in 1891. Absolute magnitude: 10. Diameter: 24.05 km.
  6. Cruithne (sun distance less than 1 AU) Discovered in 1986. Absolute magnitude: 15.10. Diameter: 24.05 km.
  7. Davida (main belt asteroid) Discovered in 1903. Absolute magnitude: 6.22. Diameter: 5 km.
  8. Dresden (main belt asteroid) Discovered in 1886. Absolute magnitude: 10.2. Diameter: 23.24 km.
  9. Elvira (main belt asteroid) Discovered in 1888. Absolute magnitude: 9.84. Diameter: 27.19 km.
  10. Eros (close to Earth): part of the asteroids Amor. Discovered in 1898. It measures 33 km, with elongated shape.
  11. Eunomia Discovered in 1886. Absolute magnitude: 5.28. Diameter: 255 km.
  12. Europe (main belt asteroid) Discovered in 1858. Absolute magnitude: 6.31. Diameter: 302.5 km.
  13. Florentina (main belt asteroid) Discovered in 1891. Absolute magnitude: 10. Diameter: 27.23 km.
  14. Ganymede (near Earth) is part of the asteroids Love. Discovered in 1924. Absolute magnitude: 9.45. Diameter: 31.66 km.
  15. Gaspra (asteroid type s) (asteroid of the main belt) Discovered in 1916. Absolute magnitude: 11.46. Diameter: 12.2 km.
  16. Hathor (asteroid Aton: sun distance less than 1 AU). Discovered in 1976. Absolute magnitude: 20.2. Diameter: 0.3 km.
  17. Hermes (also called 1937 UB) (Apollo asteroid: distance of the sun greater than 1 AU, and crosses Earth’s orbit) Discovered in 1937. Absolute magnitude: 17.5.
  18. Hygieia (main belt asteroid) Discovered in 1849. Absolute magnitude: 5.43. Diameter: 407.1 km.
  19. Hilda (outer belt asteroid) Discovered in 1872. Absolute magnitude: 7.48. Diameter: 170.6 km.
  20. Hungaria (asteroid of the inner belt) Discovered in 1858. Absolute magnitude: 11.21.
  21. Icarus (Asteroid Apollo: distance of the sun greater than 1 AU, and crosses Earth’s orbit) Discovered in 1949. Absolute magnitude: 16.9. Diameter: 1 km.
  22. Ida (main belt asteroid) Of the Coronis family. Discovered in 1884. Absolute magnitude: 9.94. Diameter: 32 km.
  23. Interamnia (main belt asteroid) Discovered in 1910. Absolute magnitude: 5.94. Diameter: 316.6 km.
  24. Juno (main belt asteroid) Third discovered asteroid, one of the largest size of the main belt. Discovered in 1804. Absolute magnitude: 5.33. Diameter: 233.9 km.
  25. Koronis (main belt asteroid) Of the Coronis family. Discovered in 1876. Absolute magnitude: 9.27. Diameter: 35.4 km.
  26. Khufu (also called Keops) (asteroid Aton: distance of the sun less than 1 AU). Discovered in 1984. Absolute magnitude: 18.3. Diameter: 0.7 km.
  27. Lacrimosa (asteroid of the main belt) Of the Coronis family. Discovered in 1879. Absolute magnitude: 8.96. Diameter: 41.33 km.
  28. Nassovia (main belt asteroid) Of the Coronis family. Discovered in 1904. Absolute magnitude: 9.77. Diameter: 33.1 km.
  29. Shovels (main belt asteroid) One of the largest in the solar system. Discovered in 1802. Absolute magnitude: 4.13. Diameter: 545 km.
  30. Chiron (Between the orbits of Saturn and Uranus). Discovered in 1977. Absolute magnitude: 6.1. Diameter: 166 km.
  31. Sisyphus (Apollo asteroid: distance of the sun greater than 1 AU, and crosses Earth’s orbit) Discovered in 1972. Absolute magnitude: 12.4. Diameter: 8.48 km.
  32. Toutatis (potentially dangerous asteroid for its approach to Earth)
  33. Urda (main belt asteroid) Of the Coronis family. Discovered in 1876. Absolute magnitude: 9.1. Diameter: 39.94 km.
  34. Vesta (main belt asteroid) Discovered in 1807. Absolute magnitude: 3.2. Diameter: 530 km.

 

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