Puneet Varma (Editor)

176 Iduna

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Discovered by
  
C. H. F. Peters

Minor planet category
  
Main belt

Aphelion
  
3.7235 AU (557.03 Gm)

Discovered
  
14 October 1877

Spectral type
  
G-type asteroid

Asteroid group
  
Asteroid belt

Discovery date
  
14 October 1877

Observation arc
  
138.50 yr (50587 d)

Perihelion
  
2.6526 AU (396.82 Gm)

Orbits
  
Sun

Discovery site
  
Litchfield Observatory

Discoverer
  
Christian Heinrich Friedrich Peters

Christian Heinrich Friedrich Peters discoveries
  
167 Urda, 188 Menippe, 165 Loreley

176 Iduna is a large main-belt asteroid that was discovered by German-American astronomer Christian Heinrich Friedrich Peters on October 14, 1877, in Clinton, New York. It is named after the Ydun, a club in Stockholm that hosted an astronomical conference. A G-type asteroid, it has a composition similar to that of the largest main-belt asteroid, 1 Ceres.

An occultation of a star by Iduna was observed from Mexico on January 17, 1998.

Photometric observations of this asteroid at the Romer Observatory in Aarhus, Denmark during 1996 gave a light curve with a period of 11.289 ± 0.006 hours and a brightness variation of 0.35 in magnitude. A 2008 study at the Palmer Divide Observatory in Colorado Springs, Colorado gave a period of 11.309 ± 0.005 hours, confirming the 1996 result.

References

176 Iduna Wikipedia