13058 Alfredstevens

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13058 Alfredstevens
Discovery [1]
Discovered by E. W. Elst
Discovery site La Silla Obs.
Discovery date19 November 1990
Designations
(13058) Alfredstevens
Named after
 Alfred Stevens
(Belgian painter) [2]
1990 WN3 ·1992 GB7
1992 HB6
main-belt  · Vesta [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 26.45 yr (9,662 days)
Aphelion 2.6314 AU
Perihelion 2.0871 AU
2.3593 AU
Eccentricity 0.1154
3.62 yr (1,324 days)
154.40°
0° 16m 19.2s / day
Inclination 6.1063°
197.09°
214.67°
Physical characteristics
Dimensions2.601±0.409 km [4] [5]
3.06 km (calculated) [3]
4.2993±0.0057 h [6]
0.20 (assumed) [3]
0.344±0.082 [4] [5]
S [3]
14.5 [1]  ·15.23±0.26 [7]  ·14.7 [4]  ·14.483±0.004(R) [6]  ·14.93 [3]

    13058 Alfredstevens, provisional designation 1990 WN3, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered by Belgian astronomer Eric Elst at ESO's La Silla Observatory in Northern Chile, on 19 November 1990. [8] The asteroid was named for Belgian painter Alfred Stevens. [2]

    Contents

    Orbit and classification

    Based on its orbital elements, Alfredstevens is a member of the Vesta family, a group of asteroids that originated from a massive impact on the Southern Hemnisphere of 4 Vesta, the family's namesake. It orbits the Sun in the inner main-belt at a distance of 2.1–2.6  AU once every 3 years and 7 months (1,324 days). Its orbit has an eccentricity of 0.12 and an inclination of 6° with respect to the ecliptic. [1]

    The body's observation arc begins just five days prior to its official discovery observation, with a precovery taken at Palomar Observatory on 14 November 1990. [8]

    Physical characteristics

    Lightcurves

    In January 2013, a rotational lightcurve of Alfredstevens was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 4.2993 hours with a brightness variation of 0.45 magnitude ( U=2 ). [6]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Alfredstevens measures 2.6 kilometers in diameter and its surface has a high albedo of 0.34, [4] [5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a larger diameter of 3.1 kilometers with an absolute magnitude of 14.93. [3]

    Naming

    This minor planet was named in honor of Belgian painter Alfred Stevens (1823–1906), known for his paintings of elegant modern women. [2] The official naming citation was published by the Minor Planet Center on 30 January 2010 ( M.P.C. 68446). [9]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 13058 Alfredstevens (1990 WN3)" (2017-04-28 last obs.). Jet Propulsion Laboratory . Retrieved 24 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (13058) Alfredstevens. Springer Berlin Heidelberg. p. 835. ISBN   978-3-540-29925-7 . Retrieved 12 May 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (13058) Alfredstevens". Asteroid Lightcurve Database (LCDB). Retrieved 12 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. S2CID   118700974 . Retrieved 12 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. S2CID   118745497 . Retrieved 3 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. S2CID   8342929 . Retrieved 12 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. S2CID   53493339 . Retrieved 12 May 2016.
    8. 1 2 "13058 Alfredstevens (1990 WN3)". Minor Planet Center. Retrieved 12 May 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 12 May 2016.
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