1460 Haltia
Main-belt asteroid
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1460 Haltia, provisional designation 1937 WC, is a stony background asteroid from the central regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 24 November 1937, by Finnish astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory in Turku, Finland.[10] The asteroid was named after Halti (Haltia), Finland's highest peak on the border to Norway.[2]
| Discovery[1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 24 November 1937 |
| Designations | |
| (1460) Haltia | |
Named after | Halti/Haltia[2] (highest Finnish peak) |
| 1937 WC | |
| main-belt · (middle) background[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 79.61 yr (29,077 days) |
| Aphelion | 3.0202 AU |
| Perihelion | 2.0643 AU |
| 2.5422 AU | |
| Eccentricity | 0.1880 |
| 4.05 yr (1,481 days) | |
| 245.72° | |
| 0° 14m 35.52s / day | |
| Inclination | 6.6858° |
| 74.185° | |
| 358.22° | |
| Physical characteristics | |
| Dimensions | 6.57±1.19 km[4] 7.43±0.61 km[5] 8.440±0.225 km[6] 8.97 km (calculated)[7] |
| 3.58682±0.00006 h[8] 3.588±0.005 h[8] 3.59 h[7] | |
| 0.186±0.032[5] 0.20 (assumed)[7] 0.226±0.030[6] 0.36±0.15[4] | |
| S (assumed)[7] | |
| 12.60[4][6][7] · 12.7[1] · 12.78±0.14[9] · 13.10[5] | |
Orbit and classification
Haltia is a non-family asteroid of the main belt's background population.[3] It orbits the Sun in the central asteroid belt at a distance of 2.1â3.0 AU once every 4 years and 1 month (1,481 days). Its orbit has an eccentricity of 0.19 and an inclination of 7° with respect to the ecliptic.[1] The body's observation arc begins with its official discovery observation at Turku.[10]
Physical characteristics
Haltia is an assumed stony S-type asteroid.[7]
Rotation period
Two rotational lightcurves of Haltia were obtained from photometric observations by astronomers Henk de Groot, Raoul Behrend and René Roy. Lightcurve analysis gave a respective rotation period of 3.58682 and 3.588 hours with a brightness amplitude of 0.32 magnitude (U=3-/3).[8] The Lightcurve Data Base adopts a consolidated period of 3.59 hours.[7]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Haltia measures between 6.57 and 8.44 kilometers in diameter and its surface has an albedo between 0.186 and 0.36.[4][5][6]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.97 based on an absolute magnitude of 12.6.[7]
Naming
This minor planet was named after Halti (Haltia), the highest Finnish peak at 1,365 metres (4,478 ft) located on the border between Norway and Finland.[2] The official naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3928).[11]
