 | Sir Richard Phillips - Celestial mechanics - 1811 - 196 pages
...Sun, and sometimes they go behind the Sun. 2. Their orbits are within that of the Earth's, because they are never seen in opposition to the Sun ; that is, they never appear to rise from the horizon when the Sun is setting. 3. The orbits of all the other planets... | |
 | John Lee Comstock - Physics - 1813 - 448 pages
...That the orbits of Mercury and Venus are within thai of the earth, is evident from the circumstance, that they are never seen in opposition to the sun, that is, they never ap peai in the west, when the sun is in the east. On the contrary, the orbits of all the other... | |
 | Jeremiah Joyce - Science - 1815 - 388 pages
...How is this known ? Tutor. By observation ; for by attentively watching the progress of these bodies, it is found that they are continually changing their...heavens in the evening when the sun appears in the west. Charles. Then they may be considered as attendants upon the sun ? Tutor. They may : Mercury is never... | |
 | Edward Bruce (bookseller.) - 1821 - 418 pages
...superior planets, because they are at a greater distance from the sun than the earth. The inferior planets are never seen in opposition to the sun : that is, they are never seen in the east when the sun is in the west, nor in the west when the sun is in the east; nor are they ever seen... | |
 | Almanacs, English - 1822 - 440 pages
...earth, which fact has been ascertained by observation ; for by watching the progress of these bodies, it is found that they are continually changing their...the western side of the heavens in the morning, when the Sun appears in the east; nor in the eastern part of the heavens in the evening, when the Sun appears... | |
 | Jeremiah Joyce - Science - 1825 - 310 pages
...How is this known ? Tutor. By observation; for by attentively \vatchingthe progress of these bodies, it is found that they are continually changing their...never seen in opposition to the sun ; that is, they arc never seen in the western side of the heavens in the morning when he appears in (he east; nor in... | |
 | John Lee Comstock - Physics - 1830 - 308 pages
...That the orbits of Mercury and Venus, are within that of the earth, is evident from the circumstance. that they are never seen in opposition to the sun, that is, they never appear How many moons does our system contain ? Which of the planets are attended by moons, and... | |
 | John Lee Comstock - Physics - 1835 - 308 pages
...That the orbits of Mercury and Venus are within that of the earth, is evident from the circumstance, that they are never seen in opposition to the sun, that is, they never appear In the west, when the sun is in the east . On the contrary, the orbits of all the other... | |
 | John Lee COMSTOCK (and HOBLYN (Richard Dennis)), John Lee COMSTOCK - 1846 - 506 pages
...That the orbits of Mercury and Venus are within that of the earth, is evident from the circumstance, that they are never seen in opposition to the sun, that is, they never appear in the west, when the sun is in the east. On the contrary, the orbits of all the other... | |
 | Jeremiah Joyce - Astronomy - 1852 - 400 pages
.../. How is this known? T. By observation : for by attentively watching the progress of these bodies, it is found that they are continually changing their...when the sun appears in the west. C. Then they may be considered as attendants upon the sun? T. They may: Mercury is never seen from the earth at a greater... | |
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By observation ; for by attentively watching the progress of these bodies, it is found that they are continually changing their places among the fixed stars, and that they are never seen in opposition to the sun, that is, they are never seen in the western... 