1704 Wachmann
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Light curve based 3D-model of Wachmann
|
|
| Discovery | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 7 March 1924 |
| Designations | |
| MPC designation | 1704 Wachmann |
|
Named after
|
Arno Wachmann (astronomer) |
| A924 EE · 1947 CE 1957 BJ |
|
| main-belt · (inner) | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.05 yr (33,620 days) |
| Aphelion | 2.4171 AU |
| Perihelion | 2.0295 AU |
| 2.2233 AU | |
| Eccentricity | 0.0872 |
| 3.32 yr (1,211 days) | |
| 7.4102° | |
| 0° 17m 50.28s / day | |
| Inclination | 0.9709° |
| 259.49° | |
| 280.92° | |
| Physical characteristics | |
| Dimensions |
6.618±0.070 6.934±0.070 km 7.82 km (calculated) |
| 3.314±0.001 h | |
|
0.1767±0.0133 0.193±0.036 0.20 (assumed) |
|
| S | |
| 12.9 · 12.97±0.13 · 13.3 | |
1704 Wachmann, provisional designation A924 EE, is a stony asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 7 March 1924.
The S-type asteroid orbits the Sun at a distance of 2.0–2.4 AU once every 3 years and 4 months (1,211 days). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic. No precoveries were taken and the asteroid's observation arc begins 3 days after its official discovery date.
In April 2007, a rotational light-curve for this asteroid was obtained at the U.S. Sandia View Observatory in New Mexico (H03). The light-curve gave a well-defined rotation period of 3.314±0.001 hours with a brightness variation of 0.40 in magnitude (U=3).
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 6.6 and 6.9 kilometers in diameter, and its surface has an albedo of 0.177 and 0.193, respectively, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 7.8 kilometers, based on an absolute magnitude of 12.9.
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