118P/Shoemaker–Levy
{{Short description|Periodic comet with 6 year orbit}}
{{For|other comets discovered by Carolyn and Eugene Shoemaker, and David H. Levy|Comet Shoemaker|Comet Levy}}
{{Infobox comet
| name=118P/Shoemaker-Levy
| image = 240px
| caption = 118P when 2AU from the Sun
| discoverer=Carolyn S. Shoemaker
Eugene Merle Shoemaker
David H. Levy
| discovery_date=February 9, 1991
| designations=118P/1991 C2; 1990 XII; 1991f; 118P/1995 M1
| epoch=May 1, 2009
(JD 2454952.5)
| semimajor=3.463 AU
| perihelion=1.984 AU
| aphelion=4.943 AU
| eccentricity=0.4272
| period=6.45 yr
| inclination= 8.509°
| last_p=2022-Nov-24
June 16, 2016
January 2, 2010
| next_p=2029-01-11{{cite web
|title=118P/Shoemaker–Levy Orbit
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=118P
|publisher=Minor Planet Center
|accessdate=2023-04-29}}
}}
118P/Shoemaker–Levy (also known as periodic comet Shoemaker–Levy 4) is a comet discovered by astronomers Carolyn and Eugene M. Shoemaker and David Levy.
During the 2010 apparition the comet became as bright as apparent magnitude 11.5.
The comet nucleus is estimated to be 4.8 kilometers in diameter.
On December 3, 2015, comet Shoemaker–Levy 4 will pass {{convert|0.0442|AU|km mi|abbr=on|lk=on}} from asteroid 4 Vesta.
This comet should not be confused with Comet Shoemaker–Levy 9 (D/1993 F2) which spectacularly crashed into Jupiter in 1994.
References
{{reflist|refs=
|date=2008-11-26
|title=118P/Shoemaker–Levy 4
|publisher=Seiichi Yoshida's Comet Catalog
|author=Seiichi Yoshida
|url=http://www.aerith.net/comet/catalog/0118P/index.html
|accessdate=2010-03-03}}
|date=2009-09-01
|title=118P/Shoemaker-Levy 4 (NK 1820)
|publisher=OAA Computing and Minor Planet Sections
|author=Syuichi Nakano
|author-link=Syuichi Nakano
|url=http://www.oaa.gr.jp/~oaacs/nk/nk1820.htm
|accessdate=2010-03-03}}
|date=2010-01-17
|title=Weekly Information about Bright Comets (2010 Jan. 16: North)
|publisher=Seiichi Yoshida's Comet Catalog
|author=Seiichi Yoshida
|url=http://www.aerith.net/comet/weekly/20100116n.html
|accessdate=2010-03-04}}
|type=2009-11-28 last obs
|title=JPL Small-Body Database Browser: 118P/Shoemaker-Levy 4
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=118P
|publisher=Jet Propulsion Laboratory
|accessdate=2010-03-03}}
|type=2009-11-28 last obs
|title=JPL Close-Approach Data: 118P/Shoemaker-Levy 4
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=118P;cad=1#cad
|accessdate=2010-03-03}}
}}
External links
- {{JPL Small Body|id=1000150}}
- [http://www.aerith.net/comet/catalog/0118P/2010-mag.gif 118P magnitude plot for 2010]
- http://jcometobs.web.fc2.com/pcmtn/0118p.htm
- [http://cometography.com/pcomets/118p.html 118P on Kronk's Cometography]
{{PeriodicComets Navigator|117P/Helin–Roman–Alu|119P/Parker–Hartley}}
{{Comets}}
{{Authority control}}
{{DEFAULTSORT:Shoemaker-Levy, 118P}}
Category:Discoveries by Carolyn S. Shoemaker
Category:Discoveries by Eugene Merle Shoemaker
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