 | William Nicholson - 1787 - 446 páginas
...tail begins to appear while they are yet in a- higher, and conie-» qtieurfy colder region th-aa Mass. The tail is: always directed to that part of the heavens which is directly or nearly oppofide to the Sun; and is greater after the comet has paft its perihefiurn, than during its approach... | |
 | Tobias Smollett - 1789 - 594 páginas
...intern;il part the nucleus. When a comet arrives at a certain diflance from the fun, an exhalation ariles from it, which is called the tail. ' The tail is always...directly or nearly oppofite to the fun, and is greater after the comet has pad its perihelium, than in its approach to it, being greateft of all when it has... | |
 | Tobias Smollett - 1789 - 624 páginas
...head of the comet, and the inrernal part the nucleus. When я comet arrives at a certain diilartce from the fun, an exhalation arifes from it, which...called the tail. ' The tail is always directed to that paYt of the heavens which is direftly or nearly oppofite to the fun, and is greater after the comet... | |
 | William Nicholson - 1796 - 440 páginas
...the tail begins to appear while they are yet in a higher, and confequently colder region than Mars. The tail is always directed to that part of the heavens which is direcUy directly or nearly oppofite to the Sun; and is greater after the comet has paft its perihelium,... | |
 | William Nicholson - 1805 - 446 páginas
...the tail begins to appear while they are yet in a higher, and confequently colder region than Mars. The tail is always directed to that part of the heavens which is directly dire&ly or nearly oppofite to the Sun; and is .greater after the comet has paft its perihelium, than... | |
 | George Gregory - 1808 - 452 páginas
...happens commonly that a comet is accompanied by a train of light, sometimes very long, as at L, and always directed to that part of the heavens which is directly, or nearly, opposite to the sun; this is called the tail of the comet. Newton attributes the rise and the direction... | |
 | George Adams - 1812 - 586 páginas
...internal part the nucleus. When a comet arrives at a certain distance from the sun, an exhalation arises from it, which is called the tail. The tail is always...that part of the heavens which is directly or nearly opposite to the sun, and is greater and brighter after the comet has passed its perihelium. The tail... | |
 | George Adams - 1812 - 552 páginas
...internal part the nucleus. When a comet arrives at a certain distance from the sun, an exhalation arises from it, which is called the tail. The tail is always...that part of the heavens which is directly or nearly opposite to the sun, and is greater and brighter after the comet has passed its perihelium. The tail... | |
 | John Bonnycastle - 1816 - 490 páginas
...they are yet in a higher, and consequently a colder region, than Mars. In every situation of the comet the tail is always directed to that part of the heavens which is nearly opposite to the sun ; and is always greater after the comet has passed its perihelion, than... | |
 | 664 páginas
...for the tail begins to appear while they are in a higher, and consequently colder region thanMars. The tail is always directed to that part of the heavens which is directly opposite to the sun, and is greater after the comet has passed its perihelium than at its approach.... | |
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... the name of Comets has been given. They are distinguished from the other celestial bodies, by their ruddy appearance, and by a long train of light, called the tail, which sometimes extends over a considerable portion of the heavens, and which is so... 
