276 Adelheid
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| Discovery A | |
|---|---|
| Discoverer | Johann Palisa |
| Discovery date | April 17, 1888 |
| Alternate designations B |
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| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.073 |
| Semi-major axis (a) | 465.694 Gm (3.113 AU) |
| Perihelion (q) | 431.765 Gm (2.886 AU) |
| Aphelion (Q) | 499.623 Gm (3.34 AU) |
| Orbital period (P) | 2006.1 d (5.49 a) |
| Mean orbital speed | 16.88 km/s |
| Inclination (i) | 21.645° |
| Longitude of the ascending node (Ω) |
211.301° |
| Argument of perihelion (ω) |
268.386° |
| Mean anomaly (M) | 168.822° |
| Physical characteristics D | |
| Dimensions | 122.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | PC |
| Absolute magnitude | 8.56 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
276 Adelheid is a very large Main belt asteroid. It is classified by IRAS satellite as a combination of P-type and C-type asteroids and so is probably composed of primitive carbonaceous materials.
It was discovered by Johann Palisa on April 17, 1888 in Vienna.
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