Comet Humason

Comet Humason
There is another long-period comet named Humason: C/1960 M1 (a.k.a. 1959 X, 1960e).

Comet Humason, formally designated C/1961 R1 (a.k.a. 1962 VIII and 1961e), was a non-periodic comet discovered by Milton L. Humason on September 1, 1961. Its perihelion was well beyond the orbit of Mars, at 2.133 AU. Its period is 2940 years, and the diameter of its nucleus estimated at about 41 km.

It was a 'giant' comet, much more active than a normal comet for its distance to the Sun, with an absolute magnitude of +1.5, a hundred times brighter than an average new comet. It had an unusually disrupted or 'turbulent' appearance.[1] It was also unusual in that the spectrum of its tail showed a strong predominance of the ion CO+, a result previously seen unambiguously only in Comet Morehouse (C/1908 R1).[2]


  1. ^ Brandt & Chapman, Introduction to Comets, Cambridge University Press, 2004, p.156
  2. ^ Huebner, W. Physics and chemistry of comets, Springer-Verlag, 1990, p.246

Wikimedia Foundation. 2010.

См. также в других словарях:

  • 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

  • Cometa Humason — Existe otro cometa Humason con nombre oficial: C/1960 M1 (a.k.a. 1959 X, 1960e). C/1961 R1 Descubrimiento Descubridor Milton L. Humason Fecha 1 de septiembre, 1961 Nomb …   Wikipedia Español

  • Milton L. Humason — Milton Lasell Humason Born August 19, 1891(1891 08 19) Dodge Center, Minnesota Died June 18, 1972(1972 06 1 …   Wikipedia

  • List of non-periodic comets — Non periodic comets (or long period comets) are comets that do not have confirmed observations at more than one perihelion passage,[1] and thus generally have orbital periods of 200 years or more. They include single apparition comets that pass… …   Wikipedia

  • Nicholas Mayall — Nicholas U. Mayall Born …   Wikipedia

  • List of galaxies — This is a list of notable galaxies.List* 4C 37.11 * Abell 1835 IR1916 * AM 0644 741 * Andromeda Galaxy (M31/NGC 224) * Andromeda I * Antennae Galaxies (NGC 4038/NGC 4039) * Aquarius Dwarf * Arp 299 pair of colliding galaxies; has six recorded… …   Wikipedia

  • Cometa — Para otros usos de este término, véase Cometa (desambiguación). Cometa Hale Bopp. Los cometas (del latín comēta y el griego κομήτης, de κόμη, cabellera ) son cuerpos celestes constituidos por hielo y rocas que orbitan el …   Wikipedia Español

Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»