3841 Dicicco

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3841 Dicicco, provisional designation Template:Mp, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 4 November 1983, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station near Flagstaff, Arizona, in the United States.[1] It was named after American astronomer Dennis di Cicco.[2] Its minor-planet moon, provisionally designated Template:Mp, was discovered in 2014.[3]

Orbit and classification

Dicicco is member of the Flora family, one of the largest groups of stony asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,252 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic.[4]

It was first identified as Template:Mp at Crimea–Nauchnij in 1973, extending the body's observation arc by 10 years prior to its official discovery observation at Anderson Mesa.[1]

Physical characteristics

Dicicco is a stony S-type asteroid in the SMASS classification.[4]

Rotation period

In December 2014, two rotational lightcurves of Dicicco were obtained from photometric observations by an international collaboration of American and European astronomers. Lightcurve analysis gave a rotation period of 3.5949 and 3.5950 hours with a brightness amplitude of 0.18 and 0.19 magnitude, respectively (U=3/n.a.Script error: No such module "Check for unknown parameters".).[3]Template:Efn

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Dicicco measures between 4.74 and 6.45 kilometers in diameter and its surface has an albedo between 0.294 and 0.38.[5][6][7][8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 — derived from 8 Flora, the family's largest member and namesake – and derives a diameter of 5.10 kilometers using an absolute magnitude of 13.63.[9]

Satellite

During the photometric observations made in December 2014, it was revealed that Dicicco is a synchronous binary asteroid. Its minor-planet moon measures at least 1.67 kilometers in diameter based on a diameter-ratio of larger than 0.28.[10] Its orbit has an estimated semi-major axis of 12 kilometers, and a derived period of 21.63 and 21.641 hours, respectively.[3]Template:Efn

Naming

This minor planet was named after American amateur astronomer and astrophotographer Dennis di Cicco.[2] The approved naming citation was published by the Minor Planet Center on 10 April 1990 (M.P.C. 16246Script error: No such module "Check for unknown parameters".).[11]

Notes

Template:Notelist

References

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External links

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