Ikeya-Seki, Comet

Ikeya-Seki, Comet

 long-period comet that is one of a group of Sun-grazing comets having similar orbits and including the great comet known as 1882 II. Comet Ikeya-Seki was discovered Sept. 18, 1965, by two Japanese amateur astronomers, Ikeya Kaoru and Seki Tsutomu. Moving in a retrograde orbit, the comet made its closest approach to the Sun on Oct. 21, 1965, at a distance less than a solar radius from the surface. The comet was then bright enough to be seen with the naked eye in daylight. Like the similarly spectacular Comet 1882 II, it was fragmented by tides induced by its proximity to the Sun; Ikeya-Seki gave astronomers their first chance since 1882 to study a comet in such conditions. It is assumed that the group of Sun-grazing comets to which Ikeya-Seki belongs represents the remnants of a single, larger comet that also was fragmented by solar tides at some time in the past.

* * *


Universalium. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Comet Ikeya–Seki — C/1965 S1 (Ikeya–Seki) Photo by Maynard Pittendreigh Discovery Discovered by: Kaoru Ikeya, and Tsutomu Seki Discovery date: September 18, 1965 Altern …   Wikipedia

  • Ikeya-Seki — C/1965 S1 (Ikeya Seki) Eigenschaften des Orbits (Animation) Orbittyp …   Deutsch Wikipedia

  • Comet Ikeya-Seki — Infobox Comet name=C/1965 S1 (Ikeya Seki) Photo by Maynard Pittendreigh discoverer=Kaoru Ikeya, and Tsutomu Seki discovery date=September 18, 1965 designations=Great Comet of 1965, 1965 VIII, 1965f epoch=October 7, 1965 semimajor=91.5999999999981 …   Wikipedia

  • C/1965 S1 (Ikeya-Seki) — Ikeya Seki photographiée par Maynard Pittendreigh Caractéristiques orbitalesA Époque J2000.0 …   Wikipédia en Français

  • comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… …   Universalium

  • Seki Tsutomu — Tsutomu Seki (jap. 関 勉, Seki Tsutomu; * 3. November 1930 in Kōchi, Japan) ist ein japanischer Amateurastronom. Er ist der Leiter des Geisei Observatoriums in Geisei, und Mitglied der Kometensektion der Oriental Astronomical Association. Seki ist… …   Deutsch Wikipedia

  • Comet — This article is about the astronomical object. For other uses, see Comet (disambiguation). Comet Hale– …   Wikipedia

  • Great Comet — A Great Comet is a comet which becomes particularly bright and is very spectacular to a casual observer on Earth. Great comets appear, on average, once every decade. Predicting whether a comet will become a great comet is notoriously difficult,… …   Wikipedia

  • Kaoru Ikeya — (池谷薫) is a Japanese astronomer.He discovered a number of comets, including the celebrated bright C/1965 S1 (Ikeya Seki) and the periodic comet 153P/Ikeya Zhang.Asteroid 4037 Ikeya is named after him …   Wikipedia

  • Tsutomu Seki — is a Japanese astronomer, born in Kochi, Japan.He has discovered a number of comets, including the celebrated bright C/1965 S1 (Ikeya Seki).He has also discovered a large number of asteroids, including the Amor asteroid (13553) 1992 JE and the… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”