4647 Syuji

4647 Syuji
Discovery [1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date9 October 1931
Designations
(4647) Syuji
Named after
Shuji Hayakawa [1]
(Japanese astronomer)
1931 TU1 · 1970 PD
1979 FN3 · 1979 GA
1980 RF4
main-belt [1][2] · (outer)
background [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc86.39 yr (31,553 d)
Aphelion3.6451 AU
Perihelion2.1369 AU
2.8910 AU
Eccentricity0.2608
4.92 yr (1,795 d)
240.47°
0° 12m 1.8s / day
Inclination6.9377°
180.58°
128.29°
Physical characteristics
13.864±0.057 km[4]
0.063±0.004[4]
12.8[2]

4647 Syuji, provisional designation 1931 TU1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 14 kilometers (8.7 miles) in diameter. It was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely carbonaceous asteroid was named for Japanese astronomer Shuji Hayakawa.[1]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).