 ... the earth. And since it is an observed fact, that even those larger comets which have presented the appearance of a nucleus have yet exhibited no phases, though we cannot doubt that they shine by the reflected solar light, it follows that even these...  Outlines of Astronomy - Strona 298autor: John Frederick William Herschel - 1857 - Liczba stron: 573Pełny widok - Informacje o książce
 | Denison Olmsted - 1855 - Liczba stron: 318
...through them. They can only be regarded as great masses of thin vapor, susceptible of being peneft'ated through their whole substance by the sunbeams, and...from their interior parts and from their surfaces. It appears, perhaps, incredible that so thin a substance should be visible by reflected light, and... | |
 | Denison Olmsted - 1858 - Liczba stron: 318
...the smallest stars are visible through them. They can only be regarded as great masses of thin vapor, susceptible of being penetrated through their whole...from their interior parts and from their surfaces. It appears, perhaps, incredible that so thin a substance should be visible by reflected light, and... | |
 | Denison Olmsted - 1858 - Liczba stron: 454
...that the smallest stars are visible through them. They can only be regarded as masses of thin vapor, susceptible of being penetrated through their whole...from their interior parts and from their surfaces. It appears perhaps incredible, that so thin a substance should be visible by reflected light, and some... | |
 | Denison Olmsted - 1859 - Liczba stron: 318
...the smallest stars are visible through them. They can only be regarded as great masses of thin vapor, susceptible of being penetrated through their whole...from their interior parts and from their surfaces. It appears, perhaps, incredible that so thin a substance should be visible by reflected light, and... | |
 | Thomas Bassnett - 1884 - Liczba stron: 364
...of a nucleus, have yet exhibited no phases, though we cannot doubt that they shine by the reflected solar light, it follows that even these can only be regarded as great masses of thin vapor.' That comets shine solely by reflected solar light, is a position that we shall presently question... | |
 | Denison Olmsted - 1840 - Liczba stron: 458
...that the smallest stars are visible through them. They can only be regarded as masses of thin vapor, susceptible of being penetrated through their whole...from their interior parts and from their surfaces. It appears perhaps incredible, that so thin a substance should be visible by reflected light, and some... | |
 | 1881 - Liczba stron: 552
...densest part of the nucleus. Even the larger comets can only be regarded as great masses of thin vapor, susceptible of being penetrated through their whole...from their interior parts and from their surfaces. It is not necessary to resort to any phosphorescent quality to account for this phenomenon, when we... | |
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