Misplaced Pages

123 Brunhild is a stony S-type main-belt asteroid. It was discovered by German-American astronomer C. H. F. Peters on July 31, 1872, and named after Brünnehilde, a Valkyrie in Norse mythology. Brunhild has been mistaken for the non-existent variable star KN Gem.

In 1983, 123 Brunhild was observed photometrically from the Observatoire de Haute-Provence, producing an irregular light curve that showed eight extremes, including two minima and two maxima that were more accentuated than the others. This curve indicates an irregular shape or possibly areas with higher albedo, with a rotation period of 10.04 ± 0.02 hours and a brightness variation of 0.16 ± 0.01 in magnitude.

Based upon IRAS observations, the estimated diameter of this asteroid is 47.97 ± 2.6 km with a geometric albedo of 0.2134 ± 0.026. A smaller diameter value of 41.33 ± 1.73 km is obtained from the Midcourse Space Experiment observations, with an accordingly higher albedo of 0.2886 ± 0.0247.

References

1. Benjamin Smith (1903) The Century Dictionary and Cyclopedia
2. ^ Yeomans, Donald K., "123 Brunhild", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 30 April 2016.
3. "The International Variable Star Index: KN Gem". American Association of Variable Star Observers (AAVSO). Retrieved 31 December 2011.
4. Barucci, M. A.; di Martino, M. (July 1984), "Rotational rates of very small asteroids - 123 Brunhild, 376 Geometria, 437 Rhodia and 1224 Fantasia", Astronomy and Astrophysics Supplement Series, 57: 103–106, Bibcode:1984A&AS...57..103B.
5. Tedesco, Edward F.; et al. (July 2002), "The Midcourse Space Experiment Infrared Minor Planet Survey", The Astronomical Journal, 124 (124): 583–591, Bibcode:2002AJ....124..583T, doi:10.1086/340960, S2CID 117767351.

External links

• 123 Brunhild at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 123 Brunhild at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an S-type asteroid native to the asteroid belt is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

• Minor planet object articles (numbered)
• Background asteroids
• Discoveries by Christian Peters
• Named minor planets
• S-type asteroids (Tholen)
• S-type asteroids (SMASS)
• Astronomical objects discovered in 1872
• Brunhild
• S-type main-belt-asteroid stubs