406 Erna

406 Erna
A three-dimensional model of 406 Erna that was computed using light curve inversion techniques
Discovery [1][2]
Discovered byA. Charlois
Discovery siteNice Obs.
Discovery date22 August 1895
Designations
(406) Erna
PronunciationGerman: [ˈɛʁnaː][3]
Named after
Erna Bidschof [4]
(grand-daughter of J. Palisa)
1895 CB · 1949 KD1
A903 DA · A905 OB
main-belt · (outer) [5]
background [6]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc114.37 yr (41,772 days)
Aphelion3.4439 AU
Perihelion2.3861 AU
2.9150 AU
Eccentricity0.1814
4.98 yr (1,818 days)
168.93°
0° 11m 52.8s / day
Inclination4.1920°
315.76°
37.224°
Physical characteristics
Dimensions41.52±10.79 km[7]
46.145±0.732 km[8]
46.02±0.73 km[9]
46.266±0.310 km[10]
47.70±0.51 km[10]
49.19±1.7 km[5][11]
8.7893±0.0002 h[5][12]
8.790±0.0021 h[13]
8.79079[14]
0.0524±0.004[5][11]
0.056±0.010[10]
0.0595±0.0047[8]
0.060±0.007[15]
0.061±0.002[9]
0.08±0.03[7]
Tholen = P [1][5] · P [16]
B–V = 0.738[1]
U–B = 0.273[1]
9.81±0.44[17]
10.134±0.001 (R)[13]
10.36[1][5][8][10][9][11]
10.38[7]

406 Erna, provisional designation 1895 CB, is a dark asteroid of the background population in the outer regions of the asteroid belt, approximately 46 kilometers in diameter. It was discovered by French astronomer Auguste Charlois at Nice Observatory on 22 August 1895.[2] The asteroid was presumably named after Erna Bidschof, the granddaughter of Johann Palisa.[4]

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  2. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  3. ^ (German Names)
  4. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
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  7. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
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  10. ^ a b c d Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
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  13. ^ a b Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Hanus-2013a was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Belskaya-2017 was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).