| Discovery[1] | |
|---|---|
| Discovered by | Farra d'Isonzo Obs. |
| Discovery site | Farra d'Isonzo Obs. |
| Discovery date | 23 November 1995 |
| Designations | |
| (7675) Gorizia | |
Named after | Gorizia(Italian town)[2] |
| 1995 WT5 · 1976 UT19 1993 FD52 | |
| main-belt · (inner) background | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 39.64 yr (14,479 days) |
| Aphelion | 2.6402AU |
| Perihelion | 2.1896 AU |
| 2.4149 AU | |
| Eccentricity | 0.0933 |
| 3.75yr (1,371 days) | |
| 206.26° | |
| 0° 15m 45.36s / day | |
| Inclination | 4.7499° |
| 28.333° | |
| 127.73° | |
| Physical characteristics | |
| Dimensions | 3 km(est. at0.22)[3] |
| 14.4[1] | |
7675 Gorizia, provisional designation1995 WT5, is a backgroundasteroid from the inner regions of theasteroid belt, approximately 3 kilometers in diameter. It was discovered on 23 November 1995, by the staff atFarra d'Isonzo Observatory in northeastern Italy.[4] It is named for the Italian town ofGorizia.[2]
Gorizia orbits the Sun in theinner main-belt at a distance of 2.2–2.6 AU once every 3 years and 9 months (1,371 days). Its orbit has aneccentricity of 0.09 and aninclination of 5° with respect to theecliptic.[1] In 1976, it was first identified as1976 UT19 at the JapaneseKiso Observatory, extending the body'sobservation arc by 19 years prior to its official discovery observation.[4]
As of 2017,Gorizia's effective size and composition, as well as itsrotation period and shape remain unknown.[5] No estimates aboutGorizia's diameter andalbedo have been published by any of the space-based surveys such as the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, or NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission. It has an absolutemagnitude of 14.4.[1]
Based on a generic magnitude-to-diameter conversion,Gorizia measures between 3 and 7 kilometers for an albedo in the range of 0.05 to 0.25.[3] Since asteroids in the inner main-belt are often of asilicaceous rather than of acarbonaceous composition, with higher albedos, typically around 0.20,Gorizia's diameter might be on the lower end of NASA's published conversion table, as the higher the body's reflectivity (albedo), the smaller its diameter, for a given absolute magnitude (brightness).[3]
Thisminor planet was named for the northeastern Italian town ofGorizia, on the occasion of the 1000th anniversary celebrating its first documented mentioning. The discovering observatory, after which the asteroid7501 Farra was named, is located not far from Gorizia.[2] The official naming citation was published by theMinor Planet Center on 2 February 1999 (M.P.C. 33789).[6]
