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178P/Hug-Bell

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178P/Hug–Bell is a Jupiter-family comet with a 6.9-year orbit around the Sun. It was discovered by Northeast Kansas Amateur Astronomers' League members Gary Hug and Graham Bell and is thought to be the first periodic comet to be discovered by amateurs. It was declared a comet less than two days after its initial discovery, after having its course confirmed on previous images.

Wikidata facts

Parent body
Sun
Orbital period
2567.463684666904
Image
178P 2021-01-07 image ZTF-sso-615-zg-size-5.6arcmin.png
Show 14 more facts
discoverer or inventor
Graham E. Bell
time of discovery or invention
1999-12-10
provisional designation
178P/1999 X1
absolute magnitude
13.6
orbital eccentricity
0.4729919523404931
semi-major axis of an orbit
3.669474902953501
periapsis
1.933842804541083
apoapsis
5.405107001365918
orbital inclination
10.97529382676345
longitude of ascending node
103.5748531955486
argument of periapsis
296.9463255581147
mean anomaly
325.6448200596468
time of periapsis
2456496.515769103
Sources (2)

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Encyclopedic overview

3 sections
Contents
  • Orbit
  • References
  • External links

178P/Hug–Bell is a Jupiter-family comet with a 6.9-year orbit around the Sun. It was discovered by Northeast Kansas Amateur Astronomers' League members Gary Hug and Graham Bell and is thought to be the first periodic comet to be discovered by amateurs. It was declared a comet less than two days after its initial discovery, after having its course confirmed on previous images.

== Orbit == Hug–Bell's orbital period is about seven years; its orbit is eccentric, though less so than many comets. Hug–Bell's orbit lies entirely outside the orbit of Mars, but at its aphelion overlaps in solar distance with the orbit of Jupiter. Because it never comes closer to the Sun than about , it is never expected to be a very bright comet, with a typical perihelion magnitude of 18–19.

Excerpted from Wikipedia’s “178P/Hug-Bell” article, available under the CC BY-SA 4.0 licence.

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