91P/Russell

91P/Russell
Discovery
Discovered byKenneth S. Russell
Discovery siteSiding Spring Observatory, Australia
Discovery date14 June 1983
Designations
P/1983 L1
P/1989 A4
  • Russell 3
  • 1982 IX, 1990 VII
  • 1983i, 1989d
Orbital characteristics
Epoch21 November 2025 (JD 2461000.5)
Observation arc38.21 years
Number of
observations		423
Aphelion5.207 AU
Perihelion3.106 AU
Semi-major axis4.156 AU
Eccentricity0.25276
Orbital period8.473 years
Inclination16.015°
242.12°
Argument of
periapsis		356.97°
Mean anomaly235.59°
Last perihelion9 November 2020
Next perihelion26 October 2028
TJupiter2.921
Earth MOID1.593 AU
Jupiter MOID0.084 AU
Physical characteristics
Mean radius
1.26 km (0.78 mi)
Comet total
magnitude (M1)		7.7
Comet nuclear
magnitude (M2)		15.6

91P/Russell, also known as Russell 3, is a Jupiter-family comet with an 8.47-year orbit around the Sun. It was discovered by Kenneth S. Russell in 1983.

References

  1. ↑ K. S. Russell (17 June 1983). B. G. Marsden (ed.). "Comet Russell (1983i)". IAU Circular. 3828 (1). Bibcode:1983IAUC.3828....1R.
  2. 1 2 "91P/Russell – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 13 April 2026.
  3. ↑ "91P/Russell Orbit". Minor Planet Center. Retrieved 16 June 2014.
  4. ↑ "Horizons Batch for 91P/Russell (90000904) on 2028-Oct-26" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 29 April 2023. (Soln.date: 2021-Sep-07)
  5. ↑ G. Tancredi; J. A. Fernández; H. Rickman; J. Licandro (2006). "Nuclear magnitudes and the size distribution of Jupiter family comets". Icarus. 182 (2): 527–549. Bibcode:2006Icar..182..527T. doi:10.1016/j.icarus.2006.01.007.