1552 Bessel

1552 Bessel
Shape model of Bessel from its lightcurve
Discovery[1]
Discovered byY. Väisälä
Discovery siteTurku Obs.
Discovery date24 February 1938
Designations
(1552) Bessel
Named after
Friedrich Bessel
(German astronomer)[2]
1938 DE1 · 1933 FJ1
1948 EH · 1951 UF
main-belt · Eos[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc84.11 yr (30,722 days)
Aphelion3.3068 AU
Perihelion2.7174 AU
3.0121 AU
Eccentricity0.0978
5.23 yr (1,909 days)
185.26°
0° 11m 18.6s / day
Inclination9.8367°
9.9835°
39.607°
Physical characteristics
Dimensions16.63±0.84 km[4]
18.33 km (derived)[3]
18.514±0.066 km[5]
18.817±0.101 km[6]
8.96318±0.00002 h[a]
8.996±0.006 h[7]
0.1448 (derived)[3]
0.1514±0.0332[6]
0.156±0.023[5]
0.193±0.024[4]
S[3]
11.3[4][6] · 11.4[1][3] · 11.53±0.24[8]

1552 Bessel, provisional designation 1938 DE1, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 24 February 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, and named after German astronomer Friedrich Bessel.[2][9]

  1. ^ a b c Cite error: The named reference jpldata 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 d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference WISE 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. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference MPC-Bessel was invoked but never defined (see the help page).


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