6882 Sormano

Last updated

6882 Sormano
006882-asteroid shape model (6882) Sormano.png
Shape model of Sormano from its lightcurve
Discovery  [1]
Discovered by P. Sicoli
V. Giuliani
Discovery site Sormano Obs.
Discovery date5 February 1995
Designations
(6882) Sormano
Named after
 Sormano Observatory
(discovering observatory) [2]
1995 CC1 ·1986 XM2
1989 OW ·1993 OQ
Orbital characteristics   [3]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 27.85 yr (10,173 days)
Aphelion 2.8043 AU
Perihelion 2.2997 AU
2.5520 AU
Eccentricity 0.0989
4.08 yr (1,489 days)
327.31°
0° 14m 30.48s / day
Inclination 14.390°
284.19°
16.030°
Physical characteristics
Mean diameter
6.69 km (calculated) [4]
7.665±0.101 km [5]
8.096±0.040 km [6]
3.6901±0.0006  h [7]
3.998344±0.000001 h [8]
0.21 (assumed) [4]
0.269±0.034 [6]
0.3003±0.0545 [5]
S (family-based) [4]
12.5 [5]  ·12.7 [3]  ·12.736±0.003(R) [7]  ·13.19 [4]

    6882 Sormano (prov. designation: 1995 CC1) is an stony Eunomia asteroid from the middle region of the asteroid belt, approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 5 February 1995, by Italian amateur astronomers Piero Sicoli and Valter Giuliani at Sormano Astronomical Observatory in northern Italy. [1] The asteroid was named for the Italian mountain-village of Sormano and its discovering observatory. [2]

    Contents

    Orbit and classification

    Sormano is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.3–2.8  AU once every 4 years and 1 month (1,489 days). Its orbit has an eccentricity of 0.10 and an inclination of 14° with respect to the ecliptic. [3] The asteroid's observation arc begins 6 years prior to its discovery, as it had previously been observed as 1989 OW at Palomar Observatory in 1989. [1]

    Naming

    This minor planet was named in honor of the Italian mountain-village of Sormano and its discovering nearby observatory. It is funded, built and operated by the "Gruppo Astrofili Brianza", a group of Italian amateur astronomers who have discovered numerous minor planets. [2] The official naming citation was published by the Minor Planet Center on 3 May 1996 ( M.P.C. 27130). [9]

    Physical characteristics

    Rotation and shape

    In September 2010, a rotational lightcurve of Sormano was obtained from photometric observations made at the Palomar Transient Factory in California. It gave a rotation period of 3.6901 hours with a high brightness variation of 0.71 magnitude, indicative of a non-spheroidal shape ( U=2 ). [7] A similar period of 3.998 hours was derived from remodeled data of the Lowell photometric database ( n.a. ). [8]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Sormano measures 7.6 to 8.0 kilometers in diameter and its surface has an albedo between 0.269 and 0.300. [5] [6] The Collaborative Asteroid Lightcurve Link assumes an albedo 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 6.69 kilometers with an absolute magnitude of 13.19. [4]

    Related Research Articles

    <span class="mw-page-title-main">4923 Clarke</span> Asteroid

    4923 Clarke, provisional designation 1981 EO27, is a stony background asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia. The spheroidal S-type asteroid has a rotation period of 3.14 hours. It was named after British science fiction writer Arthur C. Clarke. On the same night, Schelte Bus also discovered 5020 Asimov.

    <span class="mw-page-title-main">1743 Schmidt</span> Asteroid

    1743 Schmidt, provisional designation 4109 P-L, is a dark background asteroid from the inner regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered during the Palomar–Leiden survey on 24 September 1960, by astronomers Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Tom Gehrels at Palomar Observatory in California. The C-type asteroid has a rotation period of 17.5 hours. It was named for the optician Bernhard Schmidt.

    <span class="mw-page-title-main">1050 Meta</span> Stony, main-belt asteroid of the Eunomia family

    1050 Meta, provisional designation 1925 RC, is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 14 September 1925, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The meaning of the asteroids's name is unknown. The presumably S-type asteroid has a rotation period of 6.14 hours and possibly an elongated shape.

    4149 Harrison, provisional designation 1984 EZ, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 10 kilometers in diameter. The asteroid was discovered on 9 March 1984, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station in Flagstaff, Arizona, and named after musician George Harrison.

    16765 Agnesi, provisional designation 1996 UA, is a stony Eunomia asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 16 October 1996, by Italian-American amateur astronomer Paul Comba at his private Prescott Observatory in Arizona, United States. The asteroid was named after Italian mathematician Maria Gaetana Agnesi.

    12848 Agostino, provisional designation 1997 NK10, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 5 kilometers in diameter.

    1215 Boyer, provisional designation 1932 BA, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered by astronomer Alfred Schmitt in 1932, who named it after French astronomer and college Louis Boyer.

    <span class="mw-page-title-main">2490 Bussolini</span> Asteroid

    2490 Bussolini is an Eunomia asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 3 January 1976, by staff members of the Félix Aguilar Observatory at El Leoncito Complex in Argentina. The asteroid was named after Argentine Jesuit physicist Juan Bussolini.

    <span class="mw-page-title-main">1275 Cimbria</span>

    1275 Cimbria is a Eunomia asteroid from the central regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 30 November 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southern Germany. The asteroid was named after the Cimbri, an ancient Germanic tribe.

    10830 Desforges, provisional designation 1993 UT6, is a background or Eunomian asteroid from the central regions of the asteroid belt, approximately 7 kilometers (4 miles) in diameter. It was discovered on 20 October 1993, by Belgian astronomer Eric Elst at the La Silla Observatory in northern Chile. The likely elongated S-type asteroid has a rotation period of 8.8 hours. It was named after French priest and aviation visionary Jacques Desforges.

    5256 Farquhar, provisional designation 1988 NN, is a stony Eunomian asteroid from the middle regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 11 July 1988, by American astronomers Eleanor Helin, Celina Mikolajczak and Robert Coker at the Palomar Observatory in California. The asteroid was later named for American NASA specialist Robert W. Farquhar.

    2537 Gilmore, provisional designation 1951 RL, is a Eunomia asteroid from the middle region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 4 September 1951, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was named after New Zealand astronomer couple Alan C. Gilmore and Pamela M. Kilmartin

    1346 Gotha, provisional designation 1929 CY, is a stony background asteroid from the central regions of the asteroid belt, approximately 14 kilometers (8.7 mi) in diameter. It was discovered on 5 February 1929, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The presumed S-type asteroid has a short rotation period of 2.6 hours. It was named for the German city of Gotha, located in Thuringia.

    2187 La Silla, provisionally designated 1976 UH, is a stony Eunomia asteroid from the middle region of the asteroid belt, approximately 12 kilometers in diameter.

    15460 Manca, provisional designation 1998 YD10, is a Koronian asteroid from the outer region of the asteroid belt, approximately 5 kilometers in diameter.

    13260 Sabadell, prov. designation: 1998 QZ15, is a stony Eunomia asteroid from the central region of the asteroid belt. It was discovered by Catalan amateur astronomers Ferran Casarramona and Antoni Vidal at the Montjoia Observatory (953), Barcelona, on 23 August 1998. The likely elongated asteroid measures approximately 5.3 kilometers (3.3 miles) in diameter and has a rotation period of 5.3 hours. It was named after the astronomical society "Agrupació Astronòmica de Sabadell".

    <span class="mw-page-title-main">2384 Schulhof</span> Asteroid

    2384 Schulhof (prov. designation: 1943 EC1) is a mid-sized asteroid and the namesake of the Schulhof family, located in the Eunomian region of the intermediate asteroid belt. It was discovered on 2 March 1943, by French astronomer Marguerite Laugier at Nice Observatory in southeastern France. The asteroid was later named after Hungarian astronomer Lipót Schulhof. The presumed S-type asteroid has a short rotation period of 3.3 hours and measures approximately 12 kilometers (7.5 miles) in diameter.

    5692 Shirao, provisional designation 1992 FR, is a stony Eunomia asteroid from the middle region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 23 March 1992, by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory, Hokkaidō, Japan. The asteroid was later named for Japanese geologist and astrophotographer Motomaro Shirao.

    4085 Weir, provisional designation 1985 JR, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 13 May 1985, by astronomer Carolyn Shoemaker at the Palomar Observatory in California, United States. The asteroid was named after American geologist Doris Blackman Weir.

    13390 Bouška, provisional designation 1999 FQ3, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by Czech astronomers Petr Pravec and Marek Wolf at Ondřejov Observatory in the Czech Republic on 18 March 1999. It was named after astronomer Jiří Bouška.

    References

    1. 1 2 3 4 "6882 Sormano (1995 CC1)". Minor Planet Center. Retrieved 4 November 2016.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(6882) Sormano". Dictionary of Minor Planet Names . Springer Berlin Heidelberg. p.  563. doi:10.1007/978-3-540-29925-7_6162. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 "JPL Small-Body Database Browser: 6882 Sormano (1995 CC1)" (2017-06-05 last obs.). Jet Propulsion Laboratory . Retrieved 21 June 2017.
    4. 1 2 3 4 5 6 7 "LCDB Data for (6882) Sormano". Asteroid Lightcurve Database (LCDB). Retrieved 4 November 2016.
    5. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID   118700974.
    6. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. S2CID   119293330 . Retrieved 4 November 2016.
    7. 1 2 3 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 4 November 2016.
    8. 1 2 Durech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics. 587: 6. arXiv: 1601.02909 . Bibcode:2016A&A...587A..48D. doi:10.1051/0004-6361/201527573. S2CID   118427201 . Retrieved 4 November 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 4 November 2016.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.