Image of 101955 Bennu Information Page

101955 Bennu Information Page

101955 Bennu

Alternate ID's: 1999 RQ36

Physical Characteristics:

Size diameters (a,b,c): 565 m × 535 m × 508 m

Mass: (7.329±0.009)×1010 kg

Volume: 0.0615±0.0001 km3

Density: 1.190±0.013 g/cm3

Orbital Parameters:

Semi-major axis: 1.1264 AU

Eccentricity: 0.21145

Inclination: 5.0415°


    101955 Bennu is a C-type asteroid in the Apollo group discovered by the LINEAR Project on 11 September 1999. It is a potentially hazardous asteroid (PHA), that has an orbit semi-major axis distance of 1.1264 AU. It is named after the Bennu, the ancient Egyptian mythological bird associated with the Sun, creation, and rebirth. 101955 Bennu has a mean diameter of approximately 492 m and has been observed extensively with the Arecibo Observatory planetary radar and the Goldstone Deep Space Network. Bennu is the target of the OSIRIS-REx mission, which arrived at Bennu on 3 December 2018.

    Identifier (LID)




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