3184 Raab

3184 Raab
Discovery [1]
Discovered byErnest Johnson
Discovery siteJohannesburg Obs.
Discovery date22 August 1949
Designations
(3184) Raab
Named after
Herbert Raab [1]
(Austrian astronomer)
1949 QC · 1970 GR1
1975 SG · 1980 WF1
main-belt [1][2] · (middle)
background [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc68.41 yr (24,988 d)
Aphelion3.3689 AU
Perihelion1.9689 AU
2.6689 AU
Eccentricity0.2623
4.36 yr (1,593 d)
269.05°
0° 13m 33.96s / day
Inclination8.1951°
97.111°
238.00°
Physical characteristics
13.25 km (calculated)[4]
15.28±5.62 km[5]
17.49±0.28 km[6]
17.638±0.108 km[7]
18.38±7.54 km[8]
19.280±0.060 km[9]
274.944±2.9899 h[10]
0.036±0.004[7]
0.0470±0.0041[9]
0.05±0.04[8]
0.065±0.070[5]
0.086±0.003[6]
0.10 (generic)[4]
C/S (generic)[4]
12.056±0.002 (R)[10]
12.10[6][9]
12.11±0.30[11]
12.2[2]
12.46[8]
12.51[4]
12.67[5]

3184 Raab, provisional designation 1949 QC, is a dark background asteroid and a potentially slow rotator from the central regions of the asteroid belt, approximately 17 kilometers (11 miles) in diameter. It was discovered on 22 August 1949, by South African astronomer Ernest Leonard Johnson at the Union Observatory in Johannesburg. The likely C-type asteroid could have a long rotation period of 275 hours. It was named after Austrian amateur astronomer and software engineer Herbert Raab.[1][4]

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  5. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
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  10. ^ a b Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).