290 Bruna
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A three-dimensional model of 290 Bruna based on its light curve.
|
|
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 20 March 1890 |
| Designations | |
|
Named after
|
Brno |
| main belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 100.87 yr (36843 d) |
| Aphelion | 2.93884 AU (439.644 Gm) |
| Perihelion | 1.73612 AU (259.720 Gm) |
| 2.33748 AU (349.682 Gm) | |
| Eccentricity | 0.25727 |
| 3.57 yr (1305.3 d) | |
|
Average orbital speed
|
19.48 km/s |
| 171.767° | |
| 0° 16m 32.851s / day | |
| Inclination | 22.3321° |
| 10.4972° | |
| 105.068° | |
| Earth MOID | 0.872883 AU (130.5814 Gm) |
| Jupiter MOID | 2.39805 AU (358.743 Gm) |
| Jupiter Tisserand parameter | 3.424 |
| Physical characteristics | |
| Dimensions | 11 - 24 km |
| 13.807 h (0.5753 d) | |
| 11.9 | |
290 Bruna is a main belt asteroid that was discovered on March 20, 1890 by Johann Palisa, an Austrian astronomer at the Vienna Observatory.
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.
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