- Source: 1365 Henyey
1365 Henyey, provisional designation 1928 RK, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered by German astronomer Max Wolf at Heidelberg Observatory in southern Germany on 9 September 1928, and named for American astronomer Louis Henyey.
Orbit and classification
Henyey is a member of the Flora family, a large population of stony S-type asteroids in the inner main-belt. It orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,232 days). Its orbit has an eccentricity of 0.12 and an inclination of 5° with respect to the ecliptic. It was first Identified as A907 GK at Heidelberg in 1907. The body's observation arc begins with its official discovery observation in 1928.
Physical characteristics
= Rotation period
=In August 2012, a first rotational lightcurve of Henyey was obtained from photometric observations by Daniel Klinglesmith at Etscorn Campus Observatory (719) in New Mexico. It gave a rotation period of 18.986 hours with a brightness variation of 0.23 magnitude (U=2). In November 2016, a divergent period solution of 32.2 hours with a change in brightness of 0.32 magnitude was found by French amateur astronomer René Roy (U=2).
= Diameter and albedo
=According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Henyey measures 10.31 and 10.96 kilometers in diameter and its surface has an albedo of 0.26 and 0.28. respectively. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of the family – and calculates a diameter of 11.31 kilometers with an absolute magnitude of 11.9.
Naming
Based on a suggestion by William Westbrooke, this minor planet was named after American astronomer Louis Henyey (1910–1970), known for his contributions in the field of stellar structure and stellar evolution. The lunar crater Henyey is also named in his honour. The official naming citation was published by the Minor Planet Center on 20 February 1971 (M.P.C. 3143).
Further reading
Reddy, V.; Emery, J. P.; Gaffey, M. J.; Bottke, W. F.; Cramer, A.; Kelley, M. S. (January 2009). "Composition of 298 Baptistina: Implications for the K/T impactor link". Meteoritics & Planetary Science. 44 (12): 1917–1927. Bibcode:2009M&PS...44.1917R. doi:10.1111/j.1945-5100.2009.tb02001.x.
Reddy, Vishnu; Carvano, Jorge M.; Lazzaro, Daniela; Michtchenko, Tatiana A.; Gaffey, Michael J.; Kelley, Michael S.; et al. (November 2011). "Mineralogical characterization of Baptistina Asteroid Family: Implications for K/T impactor source". Icarus. 216 (1): 184–197. arXiv:1110.3414. Bibcode:2011Icar..216..184R. doi:10.1016/j.icarus.2011.08.027. S2CID 118377061. Retrieved 22 November 2015.
References
External links
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
1365 Henyey at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1365 Henyey at the JPL Small-Body Database
Kata Kunci Pencarian:
- 1365 Henyey
- Louis G. Henyey
- Henyey (crater)
- Max Wolf
- Meanings of minor-planet names: 1001–2000
- List of minor planets: 1001–2000
- List of named minor planets: H
- List of named minor planets: 1000–1999
- Star formation
- 1364 Safara
