Astronomy:22577 Alfiuccio
| 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 | |
| Minor planet category | 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) |
| |{{{apsis}}}|helion}} | 2.6306 AU |
| |{{{apsis}}}|helion}} | 1.9499 AU |
| 2.2903 AU | |
| Eccentricity | 0.1486 |
| Orbital period | 3.47 yr (1,266 days) |
| Mean anomaly | 123.89° |
| Mean motion | 0° 17m 3.84s / day |
| Inclination | 3.8671° |
| Longitude of ascending node | 65.751° |
| 251.04° | |
| Physical characteristics | |
| Dimensions | 2.40 km (calculated)[3] |
| Rotation period | 4.3704±0.0024 h[4] |
| Geometric albedo | 0.24 (assumed)[3] |
| S [3] | |
| Absolute magnitude (H) | 14.8[1] · 14.816±0.010 (R)[4] · 15.27[3] |
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]
Orbit and classification
Alfiuccio 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
Lightcurve
In 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 ({{{1}}}).[4]
Diameter and albedo estimate
The 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
This 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
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 22577 Alfiuccio (1998 HT51)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2022577. Retrieved 27 June 2017.
- ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (22577) Alfiuccio. Springer Berlin Heidelberg. p. 1045. ISBN 978-3-540-29925-7. https://books.google.com/books?id=aeAg1X7afOoC&pg=PA1045. Retrieved 11 May 2016.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (22577) Alfiuccio". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=22577%7CAlfiuccio. Retrieved 11 May 2016.
- ↑ 4.0 4.1 4.2 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. doi:10.1088/0004-6256/150/3/75. Bibcode: 2015AJ....150...75W. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W. Retrieved 11 May 2016.
- ↑ 5.0 5.1 "22577 Alfiuccio (1998 HT51)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=22577. Retrieved 11 May 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html. Retrieved 11 May 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info )
- 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
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