• Source: 3841 Dicicco

3841 Dicicco, provisional designation 1983 VG7, 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. It was named after American astronomer Dennis di Cicco. Its minor-planet moon, provisionally designated S/2014 (3841) 1, was discovered in 2014.




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.
It was first identified as 1973 YM2 at Crimea–Nauchnij in 1973, extending the body's observation arc by 10 years prior to its official discovery observation at Anderson Mesa.




Physical characteristics


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




= 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.).




= 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. 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.




= Satellite

=
During the photometric observations made in December 2014, it was revealed that Dicicco is a synchronous binary asteroid. Its minor-planet moon, designated S/2014 (3841) 1 measures at least 1.67 kilometers in diameter based on a diameter-ratio of larger than 0.28. Its orbit has an estimated semi-major axis of 12 kilometers, and a derived period of 21.63 and 21.641 hours, respectively.




Naming


This minor planet was named after American amateur astronomer and astrophotographer Dennis di Cicco. The approved naming citation was published by the Minor Planet Center on 10 April 1990 (M.P.C. 16246).




Notes






References






External links


Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
3841 Dicicco at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
3841 Dicicco at the JPL Small-Body Database

Kata Kunci Pencarian:

• 3841 Dicicco
• Dennis di Cicco
• Brian A. Skiff
• DiCicco
• Meanings of minor-planet names: 3001–4000
• Minor-planet moon
• List of minor planets: 3001–4000
• List of named minor planets: D
• List of named minor planets: 3000–3999