2035 Stearns, provisional designation 1973 SC, is a bright Hungaria asteroid and sizable Mars-crosser inside the inner regions of the asteroid belt, approximately 6 kilometers (3.7 miles) in diameter. It was discovered on 21 September 1973, by American astronomer James Gibson at the Leoncito Astronomical Complex in Argentina. The transitional  E-type asteroid has a long rotation period of 93 hours. It was named after American astronomer  Carl Leo Stearns.
Orbit and classification Stearns is a dynamical Hungaria asteroid, a large group that forms the innermost dense concentration of asteroids in the Solar System.  It is also a  Mars-crossing asteroid, a member of the dynamically unstable group, located between the main belt and near-Earth populations, and crossing the orbit of Mars at 1.666 AU.
The asteroid orbits the Sun in the
inner main-belt at a distance of 1.64–2.13 AU once every 2 years and 7 months (945 days; semi-major axis of 1.88 AU). Its orbit has an eccentricity of 0.13 and an inclination of 28 ° with respect to the ecliptic.
observation arc begins with a precovery taken at Palomar Observatory in January 1954, nearly 20 years prior to its official discovery observation at Leoncito.
Tholen classification, Stearns is a bright E-type asteroid. while in the  SMASS classification and Bus-DeMeo taxonomy, it is an Xe-subtype that transitions from the X-type to the E-type.
lightcurve of Stearns have been obtained from photometric observations since 1988.   Analysis of the best-rated lightcurve by  Robert Stephens at the Center for Solar System Studies ( ) gave a U81 rotation period of 93 hours with a brightness amplitude of 0.20 magnitude ( ). This makes the asteroid as close U=2+ slow rotator. 
Diameter and albedo
According to the survey carried out by the
NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Stearns measures between 4.82 and 6.00 kilometers in diameter and its surface has an albedo between 0.443 and 0.65.  The  Collaborative Asteroid Lightcurve Link assumes a standard albedo for members of the Hungaria family of 0.40, and derives a diameter of 5.28 kilometers based on an absolute magnitude of 13.0.
minor planet was named after Carl Leo Stearns (1892–1972), American astronomer at Wesleyan University and Van Vleck Observatory who measured a large number of stellar parallaxes. The official  naming citation was published by the Minor Planet Center on 1 November 1978 ( ). M.P.C. 4548 The lunar crater  was also named in his honor.
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