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References
- ↑ "91P/Russell Orbit". Minor Planet Center . Retrieved 2014-06-16.
- ↑ Syuichi Nakano (2012-02-04). "91P/Russell 3 (NK 1919)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
- ↑ "Horizons Batch for 91P/Russell (90000904) on 2028-Oct-26" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons . Retrieved 2023-04-29. (Soln.date: 2021-Sep-07)
