18D/Perrine-Mrkos
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| Discovery | |
|---|---|
| Discovered by: | Charles Dillon Perrine & Antonín Mrkos |
| Discovery date: | December 9, 1896 |
| Alternate designations: | 1896 X1; 1896 VII; 1896g; 1909 P1; 1909 III; 1909b; 1955 U1; 1955 VII; 1955i; 1962 I; 1961h; 1968 VIII; 1968h |
| Orbital characteristics A | |
| Epoch: | 2002-09-03 (JD 2452520.5) |
| Aphelion distance: | 5.8537 AU |
| Perihelion distance: | 1.2872 AU |
| Semi-major axis: | 3.5705 AU |
| Eccentricity: | 0.6395 |
| Orbital period: | 6.75 a |
| Inclination: | 17.864° |
| Last perihelion: | September 10, 2002 (unobserved) |
| Next perihelion (predicted): | April 17, 2009 |
18D/Perrine-Mrkos is a periodic comet in our solar system, originally discovered by the American-Argentine astronomer Charles Dillon Perrine (Lick Observatory, California, USA) on December 9, 1896.
It was considered lost after the 1909 apparition, but was rediscovered by the Czech astronomer Antonín Mrkos (Skalnate Pleso Observatory, Slovakia) on October 19, 1955 using ordinary binoculars, it was later confirmed as 18D by Leland E. Cunningham (Leuschner Observatory, University of California, Berkeley).
The comet was last seen in 1969, but was not observed in its predicted 1975 or later appartions, and is now considered lost.
[edit] External links
| Comets | ||
|---|---|---|
| Previous periodic comet | 18D/Perrine-Mrkos | Next periodic comet |
| List of periodic comets | ||
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it was found while antonin was crapping on your moms face
