asteroid 2004 MN4 (Apophis)

URI: https://gptkb.org/entity/asteroid_2004_MN4_(Apophis)
GPTKB entity
Statements (34)
Predicate Object
gptkbp:instanceOf gptkb:asteroid
gptkbp:albedo 0.33
gptkbp:alsoKnownAs gptkb:Apophis
gptkbp:aphelion 1.099 AU
gptkbp:apparentMagnitude 19.7
gptkbp:closeApproachDate 2029-04-13
gptkbp:diameter ~370 meters
gptkbp:discoveredBy gptkb:David_J._Tholen
gptkb:Fabrizio_Bernardi
gptkb:Roy_A._Tucker
gptkbp:discoveredIn 2004-06-19
gptkbp:distanceFromEarth ~31,600 km from Earth
gptkbp:eccentricity 0.191
gptkbp:epoch 2023-09-13
https://www.w3.org/2000/01/rdf-schema#label asteroid 2004 MN4 (Apophis)
gptkbp:inclination 3.331°
gptkbp:mass ~6.1×10^10 kg
gptkbp:minorPlanetNumber gptkb:99942_Apophis
gptkbp:MOID 0.000254 AU
gptkbp:namedAfter gptkb:Apophis_(Egyptian_deity)
gptkbp:nearEarthObject true
gptkbp:observedBy gptkb:Arecibo_Observatory
gptkb:Goldstone_Deep_Space_Communications_Complex
gptkbp:orbitDiagram https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=99942
gptkbp:orbitType gptkb:Aten_asteroid
323.6 days
gptkbp:perihelion 0.746 AU
gptkbp:potentiallyHazardousAsteroid true
gptkbp:riskFactor negligible after 2029
gptkbp:rotationPeriod 30.56 hours
gptkbp:semiMajorAxis 0.922 AU
gptkbp:spectralType gptkb:Sq-type
gptkbp:bfsParent gptkb:Spacewatch_project
gptkbp:bfsLayer 7