| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 19 August 1938 |
| Designations | |
| (1469) Linzia | |
| Pronunciation | /ˈlɪntsiə/ |
Named after | Linz(Austrian city)[2] |
| 1938 QD · 1931 JD 1933 SM1 · 1936 FC1 1949 OP1 · 1955 ST 1955 UB · A916 QD | |
| main-belt · (outer)[3] background[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.40 yr (31,556 days) |
| Aphelion | 3.3312AU |
| Perihelion | 2.9148 AU |
| 3.1230 AU | |
| Eccentricity | 0.0667 |
| 5.52yr (2,016 days) | |
| 52.444° | |
| 0° 10m 42.96s / day | |
| Inclination | 13.398° |
| 188.96° | |
| 207.33° | |
| Physical characteristics | |
| Dimensions | 54.30±16.67 km[5] 58.78 km(derived)[3] 58.99±2.5 km[6] 59.021±0.518 km[7] 66.05±21.19 km[8] 67.66±0.80 km[9] 74.78±0.36 km[10] |
| 6.067h(poor)[11] 12 h(poor)[12] 15.2±0.2 h[12] 22.215±0.004 h[13] | |
| 0.038±0.006[10] 0.056±0.002[9] 0.0561(derived)[3] 0.06±0.04[5][8] 0.0733±0.0123[7] 0.0734±0.007[6] | |
| P[7] · C(assumed)[3] | |
| 9.10±0.83[14] · 9.60[6][7][9] · 9.80[5][10] · 9.9[1][3] · 9.94[8] | |
1469 Linzia, provisional designation1938 QD, is a darkasteroid from the outer regions of theasteroid belt, approximately 60 kilometers in diameter. Discovered byKarl Reinmuth atHeidelberg Observatory in 1938, the asteroid was later named after the Austrian city ofLinz.
Linzia was discovered on 19 August 1938, by German astronomerKarl Reinmuth at theHeidelberg-Königstuhl State Observatory in southwest Germany.[15] Twelve nights later, the asteroid was independently discovered by Soviet astronomerGrigory Neujmin at theSimeiz Observatory, Crimea, on 31 August 1938.[2] TheMinor Planet Center only recognizes the first discoverer.[15] The asteroid was first identified asA916 QD at Simeiz in August 1916, or 22 years prior to its official discovery.[15]
Linzia is a non-family asteroid from the main belt'sbackground population.[4] It orbits the Sun in theouter asteroid belt at a distance of 2.9–3.3 AU once every 5 years and 6 months (2,016 days). Its orbit has aneccentricity of 0.07 and aninclination of 13° with respect to theecliptic.[1] The body'sobservation arc begins at the discovering Heidelberg Observatory in May 1931, when it was identified as1931 JD.[15]
Linzia has been characterized as a dark and primitiveP-type asteroid by theWide-field Infrared Survey Explorer (WISE),[7] while the Lightcurve Data Base assumes it to be a carbonaceousC-type asteroid.[3]
In September 2010, a rotationallightcurve ofLinzia was obtained from photometric observations byRobert Stephens in collaboration with Vladimir Benishek. Lightcurve analysis gave a slightly longer-than averagerotation period of 22.215 hours with a brightness amplitude of 0.09magnitude (U=3).[13] Other lightcurves which measured a period of 6.067, 12 and 15.2 hours, received a lower quality rating (U=1/1/2-).[11][12]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA's WISE telescope,Linzia measures between 54.30 and 74.78 kilometers in diameter and its surface has analbedo between 0.038 and 0.0734.[5][6][7][8][9][10]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0561 and a diameter of 58.78 kilometers based on anabsolute magnitude of 9.9.[3]
Thisminor planet was named in honor of the Austrian city ofLinz, located on theDanube river. The name was proposed by A. Wersig (RI 2319), and the official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 132).[2]
