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B-type asteroid

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Title: B-type asteroid  
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Subject: Asteroid spectral types, F-type asteroid, C-type asteroid, Hygiea family, 895 Helio
Publisher: World Heritage Encyclopedia

B-type asteroid

Pallas, the largest B-type asteroid.

B-type asteroids are a relatively uncommon type of carbonaceous asteroid, falling into the wider C-group. In the asteroid population, B-class objects are abundant in the outer asteroid belt, and also dominate the high-inclination Pallas family which includes the second-largest asteroid 2 Pallas. They are thought to be primitive, volatile-rich remnants from the early Solar System. There are 65 known B-type asteroids in the SMASS classification,[1] and 9 in the Tholen classification as of March 2015.


  • Characteristics 1
  • Well Studied B-type Asteroids 2
  • References 3
  • See also 4


Generally similar to the magnetite, and sulfides. The closest matches to B-class asteroids have been obtained on carbonaceous chondrite meteorites that have been gently heated in the laboratory.

Well Studied B-type Asteroids

Asteroid Bennu is a B-type asteroid which is the target of the OSIRIS-REx mission. The mission seeks to characterize the asteroid by mapping the surface, studying the Yarkovsky Effect, and retrieving a sample of the asteroid to return in 2023. The spacecraft will launch in 2016.

Some of the largest B-type asteroids include:


  1. ^ "JPL Small-Body Database Search Engine: spec. type = B (SMASSII)". JPL Solar System Dynamics. Retrieved 2015-06-17. 

See also

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