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Revision as of 23:18, 27 December 2024 editKyloRen2017 (talk | contribs)Extended confirmed users4,992 edits ←Created page with '{{short description|Periodic comet}} {{Infobox comet | name = 449P/Leonard | discoverer = Gregory J. Leonard | discovery_site = Mount Lemmon Obs | mpc_name = X/1987 A2<br>P/2013 Y3<br>P/2020 S6 | discovery_date = 29 September 2020 | orbit_ref = {{r|jpl}} | epoch = 20 October 2020 (JD 2459142.5) | observation_arc = 12,458 days (34.11 years) | earliest_precovery_date = 5...'  Revision as of 23:39, 27 December 2024 edit undoKyloRen2017 (talk | contribs)Extended confirmed users4,992 editsmNo edit summaryNext edit →
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'''449P/Leonard''' is a periodic comet that orbits the ] once every 6.83 years.{{r|baa-periodic}} '''449P/Leonard''' is a periodic comet that orbits the ] once every 6.83 years.{{r|baa-periodic}}

== Discovery and observations ==


== References == == References ==
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{{DEFAULTSORT:Leonard, 449P}} {{DEFAULTSORT:Leonard, 449P}}
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{{Comet-stub}} {{Comet-stub}}

Revision as of 23:39, 27 December 2024

Periodic comet
449P/Leonard
Discovery
Discovered byGregory J. Leonard
Discovery siteMount Lemmon Obs
Discovery date29 September 2020
Designations
MPC designationX/1987 A2
P/2013 Y3
P/2020 S6
Orbital characteristics
Epoch20 October 2020 (JD 2459142.5)
Observation arc12,458 days (34.11 years)
Earliest precovery date5 January 1987
Number of
observations		294
Aphelion5.322 AU
Perihelion1.875 AU
Semi-major axis3.598 AU
Eccentricity0.47899
Orbital period6.82 years
Inclination15.459°
Longitude of
ascending node		242.571°
Argument of
periapsis		176.652°
Last perihelion23 November 2020
TJupiter2.853
Earth MOID0.8872 AU
Jupiter MOID0.0613 AU
Comet total
magnitude (M1)		8.6
Comet nuclear
magnitude (M2)		17.7

449P/Leonard is a periodic comet that orbits the Sun once every 6.83 years.

Discovery and observations

References

  1. "440P/Leonard – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 28 December 2024.
  2. J. Shanklin. "BAA Comet Section: Periodic Comets 400–499". University of Cambridge. Archived from the original on 13 July 2024. Retrieved 28 December 2024.

External links

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