1720 Niels

1720 Niels
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date7 February 1935
Designations
(1720) Niels
Named after
Niels (discoverer's grandson)[2]
1935 CQ · 1940 WH
1951 AL · 1953 VO1
1959 RA · 1963 WE
main-belt · (inner)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc89.52 yr (32,697 days)
Aphelion2.4170 AU
Perihelion1.9593 AU
2.1881 AU
Eccentricity0.1046
3.24 yr (1,182 days)
240.21°
Inclination0.7301°
127.86°
308.86°
Physical characteristics
Dimensions6.394±0.091[4]
6.566±0.063 km[5]
8.18 km (calculated)[3]
9.976 h[6]
19.2 h[7]
0.20 (assumed)[3]
0.2154±0.0284[5]
0.227±0.017[4]
LS[8] · S[3]
12.22±0.25[8] · 12.8[1][3] · 13.2[5]

1720 Niels, provisional designation 1935 CQ, is a stony asteroid from the inner regions of the asteroid belt, approximately 6.4 kilometers in diameter. It was discovered on 7 February 1935, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after a grandson of the discoverer.[2][9]

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  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Masiero-2014 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. ^ Cite error: The named reference Clark-2007 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference MPC-Niels was invoked but never defined (see the help page).