|
gptkbp:instance_of
|
gptkb:Asteroids
|
|
gptkbp:average_temperature
|
-73 to 27 degrees Celsius
|
|
gptkbp:closed
|
gptkb:2018
gptkb:2021
2135
|
|
gptkbp:collaboration
|
NASA and international partners
|
|
gptkbp:collaborations
|
gptkb:University_of_Arizona
|
|
gptkbp:composed_by
|
carbonaceous material
|
|
gptkbp:data_return
|
gptkb:2023
|
|
gptkbp:date
|
gptkb:2023
|
|
gptkbp:diameter
|
approximately 492 meters
|
|
gptkbp:discovered_by
|
gptkb:NASA's_OSIRIS-REx_mission
|
|
gptkbp:discovery
|
gptkb:Arizona
light curve analysis
|
|
gptkbp:discovery_year
|
September 11, 1999
|
|
gptkbp:distance_from_earth
|
gptkb:2023
approximately 1.126 AU
|
|
gptkbp:elevation
|
about 6 degrees
|
|
gptkbp:has_color
|
dark gray
|
|
gptkbp:historical_significance
|
study of planetary formation
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
asteroid Bennu
|
|
gptkbp:impact_probability
|
1 in 2,700
|
|
gptkbp:impact_risk_assessment
|
ongoing
|
|
gptkbp:is_explored_in
|
gptkb:OSIRIS-REx
potential follow-up missions
sample collected
|
|
gptkbp:launch_date
|
September 8, 2016
|
|
gptkbp:light_requirement
|
0.04
|
|
gptkbp:location
|
inner solar system
|
|
gptkbp:mass
|
60 grams
|
|
gptkbp:mission
|
successful sample collection
collect and return samples
understand asteroid composition
first of its kind since 2006
|
|
gptkbp:mission_duration
|
7 years
|
|
gptkbp:orbital_altitude
|
Earth-crossing orbit
studied for future impact predictions
|
|
gptkbp:orbital_inclination
|
6.9 degrees
|
|
gptkbp:orbital_period
|
none known
1.2 years
|
|
gptkbp:origin
|
Bennu bird from Egyptian mythology
|
|
gptkbp:potential_for_organic_compounds
|
high
|
|
gptkbp:potentially_hazardous_asteroid
|
gptkb:true
|
|
gptkbp:public_interest
|
high due to potential impact risk
|
|
gptkbp:publications
|
numerous peer-reviewed articles
asteroid's characteristics and mission findings
|
|
gptkbp:rotation_period
|
4.3 hours
|
|
gptkbp:sampled_in
|
to be conducted on Earth
|
|
gptkbp:scientific_classification
|
B-type asteroid
|
|
gptkbp:scientific_goals
|
understand the origin of life
|
|
gptkbp:scientific_instruments
|
spectrometers and cameras
|
|
gptkbp:significance
|
study of the early solar system
|
|
gptkbp:size
|
smaller than the Great Pyramid of Giza
|
|
gptkbp:size_category
|
small solar system body
|
|
gptkbp:surface
|
boulders and regolith
approximately 100 million years
0.0001 g
clay minerals and carbon compounds
conducted by OSIRIS-REx
|
|
gptkbp:bfsParent
|
gptkb:OSIRIS-REx
gptkb:OSIRIS-REx_mission
gptkb:New_Frontier_Programs
|
|
gptkbp:bfsLayer
|
4
|