Global Information1503 Kuopio information
 Lightcurve-based 3D-model of Kuopio | |
| Discovery[1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 15 December 1938 |
| Designations | |
MPC designation | (1503) Kuopio |
Named after | Kuopio (Finnish town)[2] |
Alternative designations | 1938 XD · 1935 EF 1953 LH |
Minor planet category | main-belt · (middle) Eunomia[3][4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.34 yr (30,075 days) |
| Aphelion | 2.8995 AU |
| Perihelion | 2.3499 AU |
Semi-major axis | 2.6247 AU |
| Eccentricity | 0.1047 |
Orbital period (sidereal) | 4.25 yr (1,553 days) |
Mean anomaly | 154.93° |
Mean motion | 0° 13m 54.48s / day |
| Inclination | 12.369° |
Longitude of ascending node | 316.98° |
Argument of perihelion | 177.92° |
| Physical characteristics | |
| Dimensions | 18.43±1.5 km[5] 18.54 km (derived)[3] 22.33±0.34 km[6] 22.985±0.964 km[7] |
Synodic rotation period | 9.577±0.0004 h[8] 9.957±0.006 h[8] 9.9586±0.0005 h[9][10] 9.96±0.05 h[8] 9.98 h[11] |
Geometric albedo | 0.223±0.008[6] 0.2995±0.056[5] 0.3243 (derived)[3] 0.399±0.262[7] |
Spectral type | S[3] |
Absolute magnitude (H) | 9.81[7] · 10.5[1][3] · 10.60[5][6] · 10.65±0.69[12] |
1503 Kuopio, provisional designation 1938 XD, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 15 December 1938, by astronomer Yrjö Väisälä at the Turku Observatory in Southwest Finland.[13] The asteroid was named for the Finnish town of Kuopio.[2]
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