astro.wikisort.org - AsteroidBruna (minor planet designation: 290 Bruna) is a main belt asteroid that was discovered on 20 March 1890 by Johann Palisa,[1] an Austrian astronomer at the Vienna Observatory.
290 Bruna A three-dimensional model of 290 Bruna based on its light curve |
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Discovered by | Johann Palisa |
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Discovery date | 20 March 1890 |
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MPC designation | (290) Bruna |
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Pronunciation | |
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Named after | Brno |
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Minor planet category | main belt |
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Epoch 31 July 2016 (JD 2457600.5) |
Uncertainty parameter 0 |
Observation arc | 100.87 yr (36843 d) |
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Aphelion | 2.93884 AU (439.644 Gm) |
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Perihelion | 1.73612 AU (259.720 Gm) |
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Semi-major axis | 2.33748 AU (349.682 Gm) |
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Eccentricity | 0.25727 |
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Orbital period (sidereal) | 3.57 yr (1305.3 d) |
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Mean anomaly | 171.767° |
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Mean motion | 0° 16m 32.851s / day |
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Inclination | 22.3321° |
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Longitude of ascending node | 10.4972° |
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Argument of perihelion | 105.068° |
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Dimensions | 9.822 km |
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Synodic rotation period | 13.807 h (0.5753 d)[2][3] |
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Geometric albedo | 0.314 |
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Absolute magnitude (H) | 11.9 |
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Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2008 gave a light curve with a period of 13.807 ± 0.001 hours and a brightness variation of 0.54 ± 0.04 in magnitude. Changes in the brightness of the minimum with phase angle is attributed to changes in the shadows across surface features.[3]
It was named by Hofrath August Bielsa for Brünn, now Brno, Czech Republic, Bielsa's home town.[4]
References
- "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
- Yeomans, Donald K., "290 Bruna", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
- Pilcher, Frederick (January 2009), "Period Determinations for 33 Polyhymnia, 38 Leda, 50 Virginia, 189 Phthia, and 290 Bruna", The Minor Planet Bulletin, vol. 36, no. 1, pp. 25–27, Bibcode:2009MPBu...36...25P.
- Schmadel, Lutz D (2007). Dictionary of Minor Planet Names (5th ed.). Berlin Heidelberg New York: Springer. p. 40. ISBN 3-540-00238-3.
External links
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На других языках
[de] (290) Bruna
(290) Bruna ist ein Asteroid des Asteroiden-Hauptgürtels, der am 20. März 1890 von Johann Palisa am Observatorium von Wien entdeckt wurde.
- [en] 290 Bruna
[es] (290) Bruna
(290) Bruna es un asteroide perteneciente al cinturón de asteroides descubierto el 20 de marzo de 1890 por Johann Palisa desde el observatorio de Viena, Austria.
Está nombrado por Brno, una ciudad de la República Checa.[2]
[ru] (290) Бруна
(290) Бруна (лат. Bruna) — астероид главного пояса, который был открыт 20 марта 1890 года австрийским астрономом Иоганном Пализой в венской обсерватории и назван в честь латинского названия чешского города Брно[1].
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