astro.wikisort.org - Comet70P/Kojima is a periodic comet in the Solar System with a current orbital period of 7.05 years.[3][4]
Periodic comet with 7 year orbit
70P/Kojima|
Discovered by | Nobuhisa Kojima at Ishiki, Aichi, Japan |
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Discovery date | 27 December 1970 |
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Epoch | 2014-Dec-9 |
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Aphelion | 5,345 AU |
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Perihelion | 2.0068 AU |
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Semi-major axis | 3.6759 AU |
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Eccentricity | 0.4541 |
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Orbital period | 7.05 yr |
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Inclination | 6.6003° |
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Last perihelion | 2021-Nov-03[1] 2014-Oct-20 |
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Next perihelion | 2028-Nov-21[2] |
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It was discovered at Ishiki, Aichi, Japan by Nobuhisa Kojima, who estimated its brightness at magnitude 14. Its parabolic orbit was calculated by Kiichirō Furukawa to have a perihelion date of 1 November 1970. This was revised on the basis of further observations to an elliptical orbit with a perihelion of 7 October and an orbital period of 6.16.
Hiroki Kosai and Furukawa relocated the comet on 9 December 1977 at its next predicted apparition with the 105 cm Schmidt telescope at the Kiso Station of the Tokyo Astronomical Observatory, estimating its brightness at magnitude 16. It was subsequently observed in 1985/1986 and 1992/1994 by Spacewatch with magnitudes of 20 and 22.1. The comet then passed close to Jupiter, which reduced the perihelion distance from 2.4 AU (Astronomical Unit) to 1.97 AU, increased the eccentricity from 0.39 to 0.46 and reduced the orbital period from 7.85 to 6.99 years.
See also
References
Comets |
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Features |
- Nucleus
- Coma
- Tails
- Antitail
- Comet dust
- Meteor shower
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Types |
- Periodic
- Numbered
- Lost
- Long period
- Halley-type
- Jupiter-family
- Encke-type
- Main-belt
- Non-periodic
- Near-parabolic
- Hyperbolic
- Unknown-orbit
- Great Comet
- Sungrazing (Kreutz)
- Extinct
- Exocomet
- Interstellar
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Related |
- Naming of comets
- Centaur
- Comet discoverers
- Extraterrestrial atmosphere
- Oort cloud
- Small Solar System body
- Asteroid
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Exploration |
- List of missions to comets
- List of comets visited by spacecraft
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Latest | |
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Culture and speculation |
- Antimatter comet
- Comets in fiction
- Comet vintages
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Lists of comets (more) |
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Periodic comets | Until 1985 (all) | |
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After 1985 (notable) | |
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Comet-like asteroids | |
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Lost | Recovered | |
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Destroyed | |
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Not found | |
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Visited by spacecraft | |
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Near-Parabolic comets (notable) | Until 1910 | |
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After 1910 | |
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After 1910 (by name) | |
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На других языках
- [en] 70P/Kojima
[ru] 70P/Кодзимы
Комета Кодзимы (70P/Kojima) — короткопериодическая комета из семейства Юпитера, которая была открыта 27 декабря 1970 года японским астрономом Нобухиса Кодзима (англ.) (рус. в городе Ishiki, Япония. Обладает довольно коротким периодом обращения вокруг Солнца — всего чуть более 7 лет.
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