4009 Drobyshevskij

4009 Drobyshevskij
Discovery [1]
Discovered byN. Chernykh
Discovery siteCrimea–Nauchnij
Discovery date13 March 1977
Designations
(4009) Drobyshevskij
Named after
Edward Drobyshevski [1]
(Russian astrophysicist)
1977 EN1 · 1982 BP3
1984 SP5
main-belt [1][2] · (outer)
Themis [3][4]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc53.96 yr (19,708 d)
Aphelion3.5557 AU
Perihelion2.7232 AU
3.1394 AU
Eccentricity0.1326
5.56 yr (2,032 d)
92.040°
0° 10m 37.92s / day
Inclination2.2916°
72.297°
181.12°
Physical characteristics
14.19 km (calculated)[3]
16.31±1.16 km[5]
18.198±0.236 km[6][7]
3.87±0.02 h[8]
3.875±0.0060 h (S)[9]
3.882±0.0060 h (R)[9]
0.044±0.008[6][7]
0.071±0.011[5]
0.08 (assumed)[3]
C [10] · C (assumed)[3]
12.4[7] · 12.50[5]
12.54±0.15 (R)[8]
12.577±0.003 (R)[9]
12.6[2][3] · 12.84[10]

4009 Drobyshevskij, provisional designation 1977 EN1, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 16 kilometers (10 miles) in diameter. It was discovered on 13 March 1977, by Soviet–Russian astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula, and named after Russian astrophysicist Edward Drobyshevski.[1] The C-type asteroid has a relatively short rotation period of 3.875 hours.[3]

  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. ^ a b c d e f Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Chang-2016 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).