astro.wikisort.org - Asteroid
Bettina (minor planet designation: 250 Bettina) is a large main belt asteroid that was discovered by Austrian astronomer Johann Palisa on September 3, 1885, in Vienna. It was named in honour of Baroness Bettina von Rothschild (née de Rothschild; 1858–1892), wife of Baron Albert von Rothschild who had bought the naming rights for £50.[4] Based upon the spectrum, it is classified as an M-type asteroid.
 A three-dimensional model of 250 Bettina based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 3 September 1885 |
| Designations | |
MPC designation | (250) Bettina |
| Pronunciation | German: [bɛˈtiːnaː][1] |
Alternative designations | A885 RA |
Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.62 yr (47710 d) |
| Aphelion | 3.5657 AU (533.42 Gm) |
| Perihelion | 2.7325 AU (408.78 Gm) |
Semi-major axis | 3.14906 AU (471.093 Gm) |
| Eccentricity | 0.13229 |
Orbital period (sidereal) | 5.59 yr (2041.1 d) |
Average orbital speed | 16.78 km/s |
Mean anomaly | 56.902° |
Mean motion | 0° 10m 34.932s / day |
| Inclination | 12.819° |
Longitude of ascending node | 23.862° |
Argument of perihelion | 76.692° |
| Physical characteristics | |
| Dimensions | 121.0±2.2 km |
Synodic rotation period | 5.0545 h (0.21060 d)[2] 5.055 h[3] |
Geometric albedo | 0.2581±0.033 |
Spectral type | M |
Absolute magnitude (H) | 7.58 |
In 1988, the asteroid was observed from the Collurania-Teramo Observatory, allowing a light curve to be produced that showed "an irregular behavior with a deeper minimum and a narrower maximum". The data showed a rotation period of 5.055 hours and a brightness variation of 0.17 ± 0.01 in magnitude. The ratio of the lengths of the major to minor axes for this asteroid were found to be 1.51 ± 0.03.[3]
References
- (German Names)
- Yeomans, Donald K., "250 Bettina", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- Dotto, E.; et al. (June 1992), "M-type asteroids – Rotational properties of 16 objects", Astronomy and Astrophysics Supplement Series, vol. 95, no. 2, pp. 195–211, Bibcode:1992A&AS...95..195D.
- Observatory, vol. 8, p. 63, 1885 & vol. 9, p. 142, 1886; see also The Guinness Book of Astronomy Facts and Feats Patrick Moore page 96 ISBN 0-900424-76-1
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 250 Bettina at AstDyS-2, Asteroids—Dynamic Site
- 250 Bettina at the JPL Small-Body Database
 | This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (250) Bettina
(250) Bettina ist ein Asteroid des äußeren Asteroiden-Hauptgürtels, der am 3. September 1885 von Johann Palisa am Observatorium von Wien entdeckt wurde. Der Asteroid wurde nach Bettina von Rothschild benannt, der Ehefrau von Albert Salomon Anselm von Rothschild, der die Namensrechte für £50 erstand.[1] Bettina ist auf Grund ihrer spektralen Charakteristik ein Asteroid des Typs M.- [en] 250 Bettina
[es] (250) Bettina
(250) Bettina es un asteroide perteneciente al cinturón de asteroides descubierto el 3 de septiembre de 1885 por Johann Palisa desde el observatorio de Viena, Austria. Está nombrado en honor de la baronesa austriaca Bettina von Rothschild.[2][fr] (250) Bettina
(250) Bettina est un astéroïde de la ceinture principale découvert par Johann Palisa le 3 septembre 1885.[it] 250 Bettina
250 Bettina è un asteroide della fascia principale del diametro medio di circa 79,75 km. Scoperto nel 1885, presenta un'orbita caratterizzata da un semiasse maggiore pari a 3,1498870 UA e da un'eccentricità di 0,1282415, inclinata di 12,81329° rispetto all'eclittica.[ru] (250) Беттина
(250) Беттина (нем. Bettina) — довольно крупный астероид главного пояса. Он был открыт 3 сентября 1885 года австрийским астрономом Иоганном Пализой[1] в Венской обсерватории и назван в честь Баронессы Беттины фон Ротшильд, жены известного венского банкира Альберта фон Саломона Ротшильда[en] , который купил право дать этому астероиду имя за £50[2].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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