The Encyclopedia Americana: The International Reference Work, Volume 7Americana Corporation, 1960 - Encyclopedias and dictionaries |
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Page 356
... comets with definite elliptical orbits , if the periods turn out over 1,000 years , we do not have much faith in the exactness of the period computed . When a comet , either coming toward or going from the Sun , nears a large planet ...
... comets with definite elliptical orbits , if the periods turn out over 1,000 years , we do not have much faith in the exactness of the period computed . When a comet , either coming toward or going from the Sun , nears a large planet ...
Page 357
... comet hunting a business . Such observers use telescopes of moderate size but large field of view . Pons is credited with finding 37 comets from 1801 to 1827 ; he still holds the record . He was the doorkeeper of the Marseilles Ob ...
... comet hunting a business . Such observers use telescopes of moderate size but large field of view . Pons is credited with finding 37 comets from 1801 to 1827 ; he still holds the record . He was the doorkeeper of the Marseilles Ob ...
Page 358
... Comets . - If a number of comets travel in almost the same orbit but with periods such that the objects in question cannot pos- sibly be the same body , they are said to belong to a comet group . The most famous is that consisting of ...
... Comets . - If a number of comets travel in almost the same orbit but with periods such that the objects in question cannot pos- sibly be the same body , they are said to belong to a comet group . The most famous is that consisting of ...
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