22577 Alfiuccio (provisional designation 1998 HT51) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter. It was discovered on 30 April 1998, by the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station in Flagstaff, Arizona, United States.[5] It was named in memory of Alfio Grasso, an Italian boy from Sicily.[2]
| Discovery [1] | |
|---|---|
| Discovered by | LONEOS |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 30 April 1998 |
| Designations | |
| (22577) Alfiuccio | |
Named after | Alfio "Alfiuccio" Grasso (Italian boy)[2] |
| 1998 HT51 · 1999 UZ8 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 20.11 yr (7,345 days) |
| Aphelion | 2.6306 AU |
| Perihelion | 1.9499 AU |
| 2.2903 AU | |
| Eccentricity | 0.1486 |
| 3.47 yr (1,266 days) | |
| 123.89° | |
| 0° 17m 3.84s / day | |
| Inclination | 3.8671° |
| 65.751° | |
| 251.04° | |
| Physical characteristics | |
| Dimensions | 2.40 km (calculated)[3] |
| 4.3704±0.0024 h[4] | |
| 0.24 (assumed)[3] | |
| S [3] | |
| 14.8[1] · 14.816±0.010 (R)[4] · 15.27[3] | |
Orbit and classification
editAlfiuccio is a member of the Flora family, one of the largest families of stony asteroids. It orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 6 months (1,266 days). Its orbit has an eccentricity of 0.15 and an inclination of 4° with respect to the ecliptic.[1]
The asteroid's observation arc begins 20 months prior to its official discovery observation, with a precovery taken at the Chinese Xinglong Station in December 1996.[5]
Physical characteristics
editLightcurve
editIn December 2010, a rotational lightcurve of Alfiuccio was obtained from photometric observations in the R-band at the Palomar Transient Factory, California. Lightcurve analysis gave a rotation period of 4.3704 hours with a brightness variation of 0.36 magnitude (U=2).[4]
Diameter and albedo estimate
editThe Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its orbital family – and calculates a diameter of 2.4 kilometers, based on a weaker absolute magnitude of 15.27.[3]
Naming
editThis minor planet was named in memory of Alfio "Alfiuccio" Grasso (1992–2004) who died in a hunting accident on the slopes of Mount Etna, Italy. The body's name was proposed by C. Blanco and M. Di Martino.[2] The official naming citation was published by the Minor Planet Center on 6 August 2009 (M.P.C. 66725).[6]
References
edit- ^ a b c d "JPL Small-Body Database Browser: 22577 Alfiuccio (1998 HT51)" (2017-01-28 last obs.). Jet Propulsion Laboratory. Retrieved 27 June 2017.
- ^ a b c Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (22577) Alfiuccio. Springer Berlin Heidelberg. p. 1045. ISBN 978-3-540-29925-7. Retrieved 11 May 2016.
- ^ a b c d e f "LCDB Data for (22577) Alfiuccio". Asteroid Lightcurve Database (LCDB). Retrieved 11 May 2016.
- ^ a b c Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID 8342929. Retrieved 11 May 2016.
- ^ a b "22577 Alfiuccio (1998 HT51)". Minor Planet Center. Retrieved 11 May 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 11 May 2016.
External links
edit- 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 (20001)-(25000) – Minor Planet Center
- 22577 Alfiuccio at AstDyS-2, Asteroids—Dynamic Site
- 22577 Alfiuccio at the JPL Small-Body Database
