1246 Chaka

1246 Chaka
Discovery[1]
Discovered byC. Jackson
Discovery siteJohannesburg Obs.
Discovery date23 July 1932
Designations
(1246) Chaka
Named after
Shaka (King of the Zulus)[2]
1932 OA
main-belt[1][3] · (middle)
background[4][5]
Orbital characteristics[3]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc86.29 yr (31,519 d)
Aphelion3.4329 AU
Perihelion1.8068 AU
2.6198 AU
Eccentricity0.3103
4.24 yr (1,549 d)
128.91°
0° 13m 56.64s / day
Inclination16.004°
290.52°
54.847°
Physical characteristics
17.634±0.498 km[6][7]
17.73±3.89 km[8]
18.11±0.9 km[9]
19.596±0.035 km[10]
20.84±1.39 km[11]
25.462±0.001 h[a]
0.195[11]
0.2045[10]
0.2351[9]
0.26[8]
0.310[6]
A (S3OS2-TH)[12]
Sl (S3OS2-BB)[12]
10.8[8][11]
10.9[1][3][6][9][10]

1246 Chaka, provisional designation 1932 OA, is a background asteroid from the central regions of the asteroid belt, approximately 18 kilometers (11 miles) in diameter. It was discovered on 23 July 1932, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg.[1] The uncommon A/Sl-type asteroid has a longer than average rotation period of 25.5 hours.[13] It was named for the Zulu King Shaka.[2]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference Lazzaro-2004 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference lcdb was invoked but never defined (see the help page).


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