10551 Göteborg
Discovery[1]
Discovered byE. W. Elst
Discovery siteCERGA (Caussols Obs.)
Discovery date18 December 1992
Designations
(10551) Göteborg
Named after
Gothenburg
(Swedish city)[2]
1992 YL2 · 1931 AK
1994 EB3
main-belt · Eos[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc85.88 yr (31,367 days)
Aphelion3.1824 AU
Perihelion2.8048 AU
2.9936 AU
Eccentricity0.0631
5.18 yr (1,892 days)
271.72°
0° 11m 25.08s / day
Inclination11.381°
93.068°
8.4760°
Physical characteristics
Dimensions11.53 km (calculated)[3]
15.491±0.101 km[4]
15.689±0.128[5]
335.3458±4.6612 h[6]
0.084±0.010[5]
0.1169±0.0139[4]
0.14 (assumed)[3]
S[3]
11.993±0.005 (R)[6] · 12.0[4] · 12.03±0.33[7] · 12.1[1] · 12.44[3]

    10551 Göteborg, provisional designation 1992 YL2, is a stony Eoan asteroid and slow rotator from the outer region of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 18 December 1992, by Belgian astronomer Eric Elst at CERGA in Caussols (010), southeastern France.[8] The asteroid was named after the Swedish city of Gothenburg (Göteborg).[2]

    Orbit and classification

    Göteborg is a member of the Eos family, an orbital group of more than 4,000 asteroids, which are well known for mostly being of stony composition with a relatively high albedo. It orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 2 months (1,892 days). Its orbit has an eccentricity of 0.06 and an inclination of 11° with respect to the ecliptic.[1]

    The body's observation arc begins 61 years prior to its official discovery observation, with a precovery taken the night before its first identification as 1931 AK at Lowell Observatory in January 1931.[8]

    Physical characteristics

    Slow rotator

    In September 2012, photometric observations of Göteborg at the Palomar Transient Factory, California, rendered a rotational lightcurve with a period of 335.3458 hours, or 14 days, and a brightness variation of 0.70 magnitude (U=2).[6] This makes a slow rotator, as most asteroids of this size typically have much shorter rotation periods.

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Göteborg measures 15.491 and 15.689 kilometers in diameter and its surface has an albedo of 0.084 and 0.1169, respectively[4][5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.14, taken from 221 Eos, the family's largest member and namesake – and calculates a diameter of 11.53 kilometers based on an absolute magnitude of 12.44.[3]

    Naming

    This minor planet was named after Gothenburg (Göteborg), Sweden's second-largest city and the largest port in the Nordic countries, located on the country's southwest coast. Founded in the early 17th century and heavily influenced by the Dutch, the city still has its typical canal system. Later, the Swedes acquired political power over Gothenburg and the city flourished with the development of the Swedish East India Company in the early 18th century.[2] The approved naming citation was published by the Minor Planet Center on 20 March 2000 (M.P.C. 39655).[9]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 10551 Goteborg (1992 YL2)" (2016-11-26 last obs.). Jet Propulsion Laboratory. Retrieved 23 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(10551) Göteborg". Dictionary of Minor Planet Names – (10551) Göteborg. Springer Berlin Heidelberg. p. 737. doi:10.1007/978-3-540-29925-7_8015. ISBN 978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (10551) Goteborg". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
    4. 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. Retrieved 17 May 2016.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 4 December 2016.
    6. 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. Retrieved 17 May 2016.
    7. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 17 May 2016.
    8. 1 2 "10551 Goteborg (1992 YL2)". Minor Planet Center. Retrieved 12 April 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.
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