On the other side of the terminator you will see a succession of little circular groups, appearing like numerous bubbles of oil on the surface of water.
If the apple be turned slowly round on its axis, the terminator will successively pass over all places on the earth, giving the appearance of sunrise to places at which it arrives, and of sunset to places from which it departs.
They are those circular spots near the terminator before spoken of, which look like bubbles of oil floating on water.
In the second place, were those dark regions composed of water, the terminator would be entirely smooth where it passed over these oceans or seas.
With this explanation the reader will have no difficulty in realising why the terminator always exhibits an irregular or jagged edge.
These are made specially manifest to us in connection with the terminator or visible edge of the planet seen as an illuminated crescent.
But 'The strength of the mighty and the charm of the lovely availeth naught, since death, the terminator of delights, waiteth at the threshhold of every dwelling.
And as she walked forth the voluptuous and the wise said, "Behold she is too pure for earth, the Terminator of delights and Separator of companions will soon call for her.
Yet when upon the terminator it has never stood forth as a mountain range should have done to declare its character.
In consequence, if we saw the planet at the same distance off as the Moon, the height of a peak upon it sufficient to cast an equal shadow or be seen at an equal separation from the terminator need be but two thirds as high.
On that day, so soon as the Mare Acidalium had well rounded the terminator on to the disk, at [lambda]352 deg.
When they pass over the terminator they invariably show as flattenings upon it, as if a slice of the surface had been pared off.
Four minutes after I noted it the dark space separating it from the nearest point of the terminatorhad sensibly lessened.
Slipher, astronomer at Flagstaff, shortly after taking over the telescope then directed upon Mars, suddenly noticed a large projection about halfway up the terminator of the planet.
Common upon the face of the Moon, excrescences of the terminator are rare on Mars.
Shortly after they were started, there appeared higher up the terminator and therefore farther north than had been the case the night before, a small projection.
Though not seas now, from their look the dark areas suggest old sea bottoms, and when on the terminator appear as depressions (whether because really at a lower level or because of less illumination is not certain).
Now, in spheres of different diameters the distance out from the terminator for a given height is as the square root of the diameter.
Terminator observations prove conclusively that there are no mountains on Mars, but that the surface is surprisingly flat.
Timocharis and the neighbourhood, especially the peculiar shape of the terminatoron the E.
If this magnificent object is observed when the morning terminator falls a little E.
Herodotus and Aristarchus is a large plateau, seen to the best advantage when the morning terminator lies a little distance E.
Perhaps the most striking view of Cassini and its surroundings is obtained when the morning terminator is on the central meridian.
The best phase is when the morning terminator intersects Aliacensis, as at this time the long jagged shadows of the E.
These lines will enable the observer, with the aid of the Tables in the Appendix, to find the position of the terminator at any time required.
Though almost every trace of Stadius disappears under a high light, I have had little difficulty in seeing portions of the border and some of the included details when the morning terminator had advanced as far as the E.
Under an evening sun, with the terminator lying some distance to the W.
The Plinius rills form an especially interesting system, and under favourable conditions may be seen in their entirety with a good 4 inch refractor, about the time when the morning terminator passes through Julius Caesar.
Onward toward full the terminator will be seen to bend the other way, and in about a week's time it will have merged itself with the moon's limb.
As soon as the new moon comes out in the west, one may begin to gaze with interest and watch the terminator or sunrise line gradually steal over the roughened surface, bringing new and striking craters into view each night.
When the general line of the terminator becomes a straight line from cusp to cusp, the moon is said to have reached first quarter or quadrature.
The smoothness and soft outline of the terminator shows that there are no mountains on Mars comparable with ours, but that the surface is surprisingly flat.
The aspect of these areas suggests old sea bottoms, and when on the terminator appear as depressions, though this may be only apparent and due to the dark colour.
Dr Slipher, who first saw it, was so struck by the appearance of the projection from the terminator upon the dark side of the disk that he called the other observers to witness it.
If the Moon was as smooth as a billiard ball the terminator would be clear cut.
It might be suggested that they represent snow-capped elevations or mountain peaks, but this is difficult to believe, as an examination of the terminator of Mars reveals no evidences of high elevations.
The terminator represents the limit of light on that side of the planet in the shade, in other words, where the light terminates.
During the opposition of 1892, Mr. Douglass, at that time an assistant astronomer at the Lowell Observatory, made a special study of the terminator of Mars.
In Mars, however, there are no high elevations since the terminator of Mars stands out clear cut and not jagged as in the Moon.
A careful study of the terminator for almost every degree of latitude was made, and 733 irregularities were detected.
In viewing the Moon, when at quarter or half, the terminatoris seen very ragged on account of the illumination of higher points on the surface.
Pickering observed clouds on Mars 15 miles high; these are the 'projections' seen on the terminator when the planet is partially illuminated.
I did not perceive any markings on this occasion, but there was a kind of haziness along the whole length of the terminator; but I considered this at the time to have belonged to the terminator rather than to any markings on the disc.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "terminator" in a variety of sentences. We hope that you will now be able to make sentences using this word.
