1241 Dysona

1241 Dysona
Lightcurve-based 3D-model of Dysona
Discovery[1]
Discovered byH. E. Wood
Discovery siteJohannesburg Obs.
Discovery date4 March 1932
Designations
(1241) Dysona
Named after
Frank Watson Dyson[2]
(English astronomer)
1932 EB1 · 1931 AA1
1945 RA · 1948 CE
1956 PB · A908 DC
A920 EB
main-belt · (outer)[3]
background[4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc97.31 yr (35,542 days)
Aphelion3.5165 AU
Perihelion2.8633 AU
3.1899 AU
Eccentricity0.1024
5.70 yr (2,081 days)
290.13°
0° 10m 22.8s / day
Inclination23.518°
322.27°
320.07°
Physical characteristics
Dimensions70.757±0.287 km[5]
74.83±28.44 km[6]
75.62±0.82 km[7]
77.14±0.86 km[8]
77.47±26.72 km[9]
79.190±0.694 km[10]
83.05±4.4 km[11]
8.355±0.001 h[12]
8.60738 h[13]
8.6080±0.0005 h[14]
0.04±0.05[9]
0.0425±0.005[11]
0.047±0.003[10]
0.05±0.05[6]
0.051±0.001[8]
0.051±0.005[7]
0.0585±0.0120[5]
Tholen = PDC[1][3]
B–V = 0.750[1]
U–B = 0.290[1]
9.45[1][3][5][6][7][8][11] · 9.74[9]

1241 Dysona, provisional designation 1932 EB1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 77 kilometers in diameter. It was discovered on 4 March 1932, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa.[15] The asteroid was named after English astronomer Frank Watson Dyson.[2]

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  3. ^ a b c Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Hanus-2013a was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Oey-2007b was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).