astro.wikisort.org - Comet
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. The outbound orbital period is about 2516 years. The diameter of its comet nucleus is estimated at around 30−41 km.[1]
 Comet Humason on September 4, 1962, by Palomar Observatory | |
| Discovery | |
|---|---|
| Discovered by | Milton L. Humason |
| Discovery date | 1961-Sep-01 |
| Orbital characteristics A | |
| Epoch | 1962-Dec-02 |
| Observation arc | 4.15 yr |
| Aphelion | 406.91 AU |
| Perihelion | 2.1334 AU (q) |
| Eccentricity | 0.98956 |
| Orbital period | 2883 years (barycentric inbound) 2516 years (barycentric outbound) |
| Inclination | 153.27° |
| Dimensions | 30−41 km[1] |
| Last perihelion | 1962-Dec-10[2] |
It was a "giant" comet, much more active than a normal comet for its distance to the Sun, with an absolute magnitude of 1.5−3.5, it could have been up to a hundred times brighter than an average new comet. It had an unusually disrupted or "turbulent" appearance.[3] 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).[4]
References
- "Comets: Comet Humason 1961e". Irish Astronomical Journal. 6: 191. 1964. Bibcode:1964IrAJ....6Q.191.
- "JPL Small-Body Database Browser: C/1961 R1 (Humason)" (last observation: 1965-11-01). Jet Propulsion Laboratory. Retrieved 2019-05-29.
- Brandt & Chapman. Introduction to Comets. Cambridge University Pressyear=2004. p. 156.
- Huebner, W. (1990). Physics and chemistry of comets. Springer-Verlag. p. 246.
External links
Media related to Comet Humason at Wikimedia Commons- Humason at the JPL Small-Body Database
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На других языках
- [en] Comet Humason
[es] Cometa Humason
Cometa Humason, Nombre oficial C/1961 R1 (a.k.a. 1962 VIII y 1961e), es un cometa no periódico, descubierto por Milton L. Humason el 1 de septiembre de 1961. Su perihelio estaba mucho más allá de la órbita del planeta Marte, en 2,133 Unidades Astronómicas. Su período es de 2940 años, y su diámetro aproximadamente es de 41 kilómetros.[ru] Комета Хьюмасона
Комета Хьюмасона, также проходящая под обозначением C/1961 R1, входит в список долгопериодических комет. Её обнаружил американский астроном Милтон Хьюмасон 1 сентября 1961 г. Перигелий кометы превысил орбиту Марса на 2,133 астрономических единиц, в то время как её период оценивался в 2940 лет, а диаметр ядра — приблизительно в 41 км.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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