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A three-dimensional model of 276 Adelheid based on its light curve.
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| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 17 April 1888 |
| Designations | |
| Main belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 116.91 yr (42700 d) |
| Aphelion | 3.32977 AU (498.127 Gm) |
| Perihelion | 2.90502 AU (434.585 Gm) |
| 3.11740 AU (466.356 Gm) | |
| Eccentricity | 0.068127 |
| 5.50 yr (2010.4 d) | |
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Average orbital speed
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16.88 km/s |
| 204.867° | |
| 0° 10m 44.641s / day | |
| Inclination | 21.6127° |
| 211.168° | |
| 265.293° | |
| Earth MOID | 2.0128 AU (301.11 Gm) |
| Jupiter MOID | 1.86662 AU (279.242 Gm) |
| Jupiter Tisserand parameter | 3.105 |
| Physical characteristics | |
| Dimensions | 121.60±7.7 km |
| 6.315 h (0.2631 d) | |
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0.0450±0.006 0.045 |
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| PC | |
| 8.6 | |
276 Adelheid is a very large main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on April 17, 1888, in Vienna.
This asteroid has a diameter of 122 km and a geometric albedo of 0.045.Photometric observations in 1992 gave a light curve with a period of 6.328 ± 0.012 hours and a brightness variation of 0.10 ± 0.02 in magnitude. The curve is regular with two maxima and minima. This object has a spectrum that matches an X-type classification.