961 Gunnie

961 Gunnie
Modelled shape of Gunnie from its lightcurve
Discovery [1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date10 October 1921
Designations
(961) Gunnie
Named after
A921 TH · 1930 XT
1968 HO · 1921 KM
main-belt [1][3] · (middle)
background [4][5]
Orbital characteristics [3]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc98.23 yr (35,880 d)
Aphelion2.9391 AU
Perihelion2.4485 AU
2.6938 AU
Eccentricity0.0911
4.42 yr (1,615 d)
181.91°
0° 13m 22.44s / day
Inclination10.991°
26.616°
285.28°
Physical characteristics
  • 31.49±0.55 km[6]
  • 36.571±0.307 km[7]
  • 37.82±0.9 km[8]
21.361±0.002 h[9]
  • (37.0°, 24.0°) (λ1/β1)[9]
  • (220.0°, 7.0°) (λ2/β2)[9]
  • 0.036±0.004[7]
  • 0.0373±0.002[8]
  • 0.055±0.002[6]
11.5[1][3]

961 Gunnie (prov. designation: A921 TH or 1921 KM) is a very dark background asteroid from the central regions of the asteroid belt, approximately 37 kilometers (23 miles) in diameter. It was discovered on 10 October 1921, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory.[1] The C/X-type asteroid has a rotation period of 21.4 hours. It was named after Gunnie Asplind, daughter of Swedish astronomer Bror Asplind (1890–1954).[2]

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  6. ^ a b Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference lcdb was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SDSS-Taxonomy was invoked but never defined (see the help page).