867 Kovacia
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| Discovery A | |
|---|---|
| Discoverer | J. Palisa |
| Discovery date | February 25, 1917 |
| Alternate designations B |
1817 BS, 1942 XF 1958 WA |
| Category | Main belt (Hygiea family) |
| Orbital elements C | |
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| Eccentricity (e) | 0.133 |
| Semi-major axis (a) | 458.1 Gm (3.062 AU) |
| Perihelion (q) | 397.0 Gm (2.654 AU) |
| Aphelion (Q) | 519.0 Gm (3.469 AU) |
| Orbital period (P) | 1957 d (5.36 a) |
| Mean orbital speed | 16.95 km/s |
| Inclination (i) | 5.984° |
| Longitude of the ascending node (Ω) |
49.610° |
| Argument of perihelion (ω) |
71.605° |
| Mean anomaly (M) | 200.210° |
| Physical characteristics D | |
| Dimensions | 24 km[1] |
| Mass | ~1.0×1016 kg (estimate) |
| Density | ~1.4 g/cm³ (estimate)[2] |
| Surface gravity | ~0.0047 m/s² (estimate) |
| Escape velocity | ~0.011 km/s (estimate) |
| Rotation period | unknown |
| Spectral class | B-type asteroid[3] |
| Absolute magnitude | 11.30 |
| Albedo (geometric) | 0.0923 [1] |
| Mean surface temperature |
~159 K max: 242K (-31° C) |
867 Kovacia is a minor planet orbiting the Sun.
[edit] References
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G. A. Krasinsky et al Hidden Mass in the Asteroid Belt, Icarus, Vol. 158, p. 98 (2002).
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T. Mothé-Diniz et al Rotationally Resolved Spectra of 10 Hygiea and a Spectroscopic Study of the Hygiea Family, Icarus, Vol. 152, p. 117 (2001).
[edit] External links
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