Minor planet category main belt Discovered 20 March 1890 | Discovery date 20 March 1890 Observation arc 100.87 yr (36843 d) Orbits Sun Asteroid group Asteroid belt | |
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Aphelion 2.93884 AU (439.644 Gm) Perihelion 1.73612 AU (259.720 Gm) Similar 242 Kriemhild, 220 Stephania, 276 Adelheid, 266 Aline, 265 Anna | ||
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.
References
290 Bruna Wikipedia(Text) CC BY-SA