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Discovered by | John Ewen Davidson |
Discovery site | Mackay, Queensland |
Discovery date | 19 July 1889 |
Designations | |
Alternative designations | 1889e 1889 IV |
Orbital characteristics | |
Epoch | 17 July 1889 (JD 2411200.5) |
Observation arc | 115 days |
Number of observations | 92 |
Aphelion | 869.38 AU |
Perihelion | 1.0397 AU |
Semi-major axis | 435.21 AU |
Eccentricity | 0.997611 |
Inclination | 65.992° |
Longitude of ascending node | 287.712° |
Argument of periapsis | 345.862° |
Last perihelion | 19 July 1889 |
TJupiter | 0.526 |
Physical characteristics | |
Comet total magnitude (M1) | 6.5 |
Apparent magnitude | 4.0 (1889 apparition) |
Comet Davidson, formal designation C/1889 O1, is a non-periodic comet that became visible to the naked eye in 1889.
References
- D. Jesser. "Davidson's Comet". Mackay Historical Society. Retrieved 2 January 2025.
- "Comet Names and Designations". International Comet Quarterly. Retrieved 2 January 2025.
- "C/1889 O1 (Davidson) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 24 November 2023.
- G. W. Kronk (2003). Cometography: A Catalog of Comets. Vol. 2: 1800–1899. Cambridge University Press. pp. 639–643. ISBN 978-0-521-58505-7.
External links
- C/1889 O1 at the JPL Small-Body Database
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