Observations on the zodiacal light ... with conclusions from the data thus obtainedA.O.P. Nicholson, 1856 - Japan |
From inside the book
Results 1-5 of 32
Page iv
... Cassini's mind , when , in 1683 , he first began to notice the Zodiacal Light . He had been pre- viously employed in careful observations of other matters in the same quarter of the heavens , without having at all noticed this ...
... Cassini's mind , when , in 1683 , he first began to notice the Zodiacal Light . He had been pre- viously employed in careful observations of other matters in the same quarter of the heavens , without having at all noticed this ...
Page v
... observing in the west for other things , he was struck with this luminous streak reaching far up in the sky . Unfortunately for subsequent times , Cassini's active mind immediately began to theorize ; and he had made but ten observations ...
... observing in the west for other things , he was struck with this luminous streak reaching far up in the sky . Unfortunately for subsequent times , Cassini's active mind immediately began to theorize ; and he had made but ten observations ...
Page vi
... observations made these doubtful , and the idea of such appearances was laid aside . I have dwelt so long upon Cassini's observations and theories , inasmuch as these obser- vations , though made one hundred and seventy years ago ...
... observations made these doubtful , and the idea of such appearances was laid aside . I have dwelt so long upon Cassini's observations and theories , inasmuch as these obser- vations , though made one hundred and seventy years ago ...
Page vii
... observed that all the theories and all the reasonings on the Zodiacal Light , which we have in these various authors , seem to have been founded on Cassini's conclusion , that the axis of this light has a relation to the sun's equator ...
... observed that all the theories and all the reasonings on the Zodiacal Light , which we have in these various authors , seem to have been founded on Cassini's conclusion , that the axis of this light has a relation to the sun's equator ...
Page xi
... Cassini has given the boundaries in his written accounts . It is not to be supposed by the reader that any of these kinds of light was bounded by sharp lines easily detected in the sky . On the contrary , the Stronger passed by degrees ...
... Cassini has given the boundaries in his written accounts . It is not to be supposed by the reader that any of these kinds of light was bounded by sharp lines easily detected in the sky . On the contrary , the Stronger passed by degrees ...
Common terms and phrases
_do_ 30 Diffuse 9 o'clock able Alpheral Alpherat angle appeared APRIL Arcturus ascended atmosphere brightening Capella Capollu CASSINI'S OBSERVATION chart Clouds last Clouds since last Coma Ber côté dawn DECEMBER decided decidedly deck dégrés Diffuse 7h Diffuse at 7h Diffuse Light distinct eastern sky ecliptic effulgent Light faint favorable for observations Formathault found the sky found the Zodiacal fully reliable gegenschein give given haziness horizon hour Hydru JULY last date latitude latter Light at 7h Light began lower lumière marked midnight Milky Mitky MOON ZODIACAL LIGHT morning observations nebulous matter night noticed OCTOBER outlines Pleiades portion Præsepe pulsations reflection reliable boundaries remarkably clear Riget rose at 5h seen septentrion set at 6h Sirius sky clear stars strong Stronger and Diffuse Stronger Light 7h Sun rose 5h Sun set 6h Sun's Lon thought took boundaries upper end watch Western Zodiacal Light Zenith point zigzag line 쉬우