Minor planet category Main belt Discovered 17 April 1888 | Discovery date 17 April 1888 Observation arc 116.91 yr (42700 d) Orbits Sun Asteroid group Asteroid belt | |
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Aphelion 3.32977 AU (498.127 Gm) Perihelion 2.90502 AU (434.585 Gm) Similar 266 Aline, 230 Athamantis, 265 Anna, 218 Bianca, 132 Aethra | ||
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.
References
276 Adelheid Wikipedia(Text) CC BY-SA