What is 433 Eros?
{{Infobox Planet | bgcolour=#FFFFC0 | name=433 Eros | image= 433eros.jpg | caption= This picture of Eros shows the view looking from one end of the asteroid across the gouge on its underside and toward the opposite end. | discoverer=[[Carl Gustav Witt]] | discovered = August 13, 1898 | alt_names = 1898 DQ; 1956 PC | mp_category = [[Amor asteroid|Amor]],<br />[[Mars-crosser asteroid]] | epoch=October 22, 2004 ([[Julian day|JD]] 2453300.5) | semimajor=218.155 [[Giga|G]][[metre|m]] (1.458 [[Astronomical unit|AU]]) | perihelion=169.548 Gm (1.133 AU) | aphelion=266.762 Gm (1.783 AU) | eccentricity=0.223 | period=643.219 [[day|d]] (1.76 [[Julian year (astronomy)|a]]) | inclination=10.829[[degree (angle)|°]] | asc_node=304.401° | arg_peri=178.664° | mean_anomaly=320.215° | avg_speed = 24.36&nbsp;km/[[second|s]] | dimensions=13×13×33 [[kilometre|km]] | mass=7.2×10<sup>15</sup> [[kilogram|kg]] | density=2.4&nbsp;g/[[cubic centimetre|cm³]] | surface_grav = 0.0059&nbsp;m/s² | escape_velocity=0.0103&nbsp;km/s | rotation=0.2194 d (5 h 16&nbsp;min) | spectral_type=[[S-type asteroid|S]] | magnitude = +7.1 to +15 | abs_magnitude = 11.16 | albedo=0.16 | single_temperature = ~227 [[kelvin|K]]}} '''433 Eros''' is the first [[Near-Earth asteroid]] (NEA) that was found. It was named after the [[Greek mythology|Greek god]] of love, [[Eros]] ([[Greek language|Greek]] Ἔρως). It is an [[S-type asteroid]] about 13 × 13 × 33&nbsp;km in size, the second-biggest [[near-Earth asteroid]] (NEA) after [[1036 Ganymed]]. It belongs to the [[Amor asteroid|Amors]]. It is the first asteroid that was known to cross inside the [[Mars-crosser asteroid|orbit of Mars]]. Eros is one of the few NEAs bigger than 10&nbsp;km across. It is thought to be bigger than the asteroid that made the [[Chicxulub crater]] in the [[Yucatán]] and probably caused the [[K/T extinction event|extinction of the dinosaurs]].<ref>Dividing the mass of 433 Eros by its density gives a volume of 3000&nbsp;km<sup>3</sup>, while the estimated 5&nbsp;km radius of the (assumed spherica