23718 Horgos

23718 Horgos, provisional designation 1998 GO10, is a stony background asteroid from the central regions of the asteroid belt, approximately 2.9 kilometers in diameter. It was discovered on 2 April 1998, by Hungarian astronomers Krisztián Sárneczky and László Kiss at Konkoly's Piszkéstető Station northeast of Budapest, Hungary.[8] The asteroid was named after the Serbian town of Horgoš.[2]

23718 Horgos
Discovery [1]
Discovered byK. Sárneczky
L. Kiss
Discovery sitePiszkéstető Stn.
Discovery date2 April 1998
Designations
(23718) Horgos
Named after
Horgoš [2]
(Serbian village)
1998 GO10 · 1999 TY32
main-belt · (middle)
background
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc21.31 yr (7,783 days)
Aphelion3.0553 AU
Perihelion2.0758 AU
2.5655 AU
Eccentricity0.1909
4.11 yr (1,501 days)
196.30°
0° 14m 23.28s / day
Inclination1.4380°
324.67°
318.70°
Physical characteristics
Mean diameter
2.79 km (calculated)[3]
2.944±0.821 km[4][5]
3.57±0.030 h[6]
0.20 (assumed)[3]
0.269±0.166[4][5]
S [3][7]
14.690±0.110 (R)[6] · 14.7[5] · 14.8[1] · 15.10±0.59[7] · 15.14[3]

    Orbit and classification

    Horgos is a non-family from the main belt's background population. It orbits the Sun in the central main belt at a distance of 2.1–3.1 AU once every 4 years and 1 month (1,501 days). Its orbit has an eccentricity of 0.19 and an inclination of 1° with respect to the ecliptic.[1]

    The body's observation arc begins with a precovery taken by Spacewatch at Kitt Peak Observatory in November 1995, or 29 months prior to its official discovery observation at Piszkéstető.[8]

    Physical characteristics

    Horgos has been characterized as a stony S-type asteroid by PanSTARRS photometric survey.[7]

    Rotation period

    In January 2014, a rotational lightcurve of Horgos 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 3.57 hours with a brightness amplitude of 0.21 magnitude (U=2).[6]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Horgos measures 2.944 kilometers in diameter and its surface has an albedo of 0.269.[4][5] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 2.79 kilometers based on an absolute magnitude of 15.14.[3]

    Naming

    This minor planet was named after the village of Horgoš, now in northern Serbia. The village is located near the Hungarian border and has a large Hungarian population. It is also the place where the second discoverer László L. Kiss grew up.[2] The official naming citation was published by the Minor Planet Center on 5 July 2001 (M.P.C. 43048).[9]

    References
    1. "JPL Small-Body Database Browser: 23718 Horgos (1998 GO10)" (2017-03-10 last obs.). Jet Propulsion Laboratory. Retrieved 19 September 2017.
    2. Schmadel, Lutz D. (2007). "(23718) Horgos". Dictionary of Minor Planet Names – (23718) Horgos. Springer Berlin Heidelberg. p. 872. doi:10.1007/978-3-540-29925-7_9751. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (23718) Horgos". Asteroid Lightcurve Database (LCDB). Retrieved 19 September 2017.
    4. 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 19 September 2017.
    5. 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.
    6. Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 19 September 2017.
    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 19 September 2017.
    8. "23718 Horgos (1998 GO10)". Minor Planet Center. Retrieved 19 September 2017.
    9. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 September 2017.

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