4797 Ako

4797 Ako
Discovery [1]
Discovered byT. Nomura
K. Kawanishi
Discovery siteMinami-Oda Obs. (374)
Discovery date30 September 1989
Designations
(4797) Ako
Named after
Akō, Hyōgo
(Japanese city)[2]
1989 SJ · 1978 VY9
1985 QB4
main-belt · Nysa [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc38.49 yr (14,057 days)
Aphelion2.8553 AU
Perihelion1.9714 AU
2.4133 AU
Eccentricity0.1831
3.75 yr (1,369 days)
146.42°
0° 15m 46.44s / day
Inclination1.8108°
320.82°
78.111°
Physical characteristics
Dimensions4.00 km (calculated)[3]
6.000±0.496 km[4][5]
4.085±0.001 h[6]
0.112±0.021[4][5]
0.21 (assumed)[3]
S [3]
14.1[4] · 14.3[1][3] · 14.31±0.27[7]

4797 Ako, provisional designation 1989 SJ, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 30 September 1989, by the Japanese astronomers Toshiro Nomura and Kōyō Kawanishi at the Minami-Oda Observatory (374), Japan.[8] The asteroid was named for the Japanese city of Akō.[2]

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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 c Cite error: The named reference WISE was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Bennefeld-2009c was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference MPC-Ako was invoked but never defined (see the help page).