23718 Horgos
Stony background asteroid
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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]
| Discovery[1] | |
|---|---|
| Discovered by | K. Sárneczky L. Kiss |
| Discovery site | Piszkéstető Stn. |
| Discovery date | 2 April 1998 |
| Designations | |
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 arc | 21.31 yr (7,783 days) |
| Aphelion | 3.0553 AU |
| Perihelion | 2.0758 AU |
| 2.5655 AU | |
| Eccentricity | 0.1909 |
| 4.11 yr (1,501 days) | |
| 196.30° | |
| 0° 14m 23.28s / day | |
| Inclination | 1.4380° |
| 324.67° | |
| 318.70° | |
| Physical characteristics | |
| 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]
