Observatory devices

Usage examples of telescopes.

The gunners in the second breaching battery which lay fifty yards west of the first had trained their telescopes over the gab ions to watch where the first shot fell.

Almost all the telescopes we have in the world are designed to peer at very tiny little pieces of the sky way off in the distance to see a quasar or hunt for black holes or look at a distant galaxy.

The only real network of telescopes that scans the skies has been designed and built by the military.

Large telescopes are cumbersome things, and much of their operational time is consumed with being maneuvered into position.

When the German-born musician William Herschel decided his real interest in life was astronomy, it was Michell to whom he turned for instruction in making telescopes, a kindness for which planetary science has been in his debt ever since.

There is also the problem that access to telescopes is always at a premium and historically measuring red shifts has been notably costly in telescope time.

Even with his strongest telescopes he could not have perceived one of the settlers crouched among the rocks.

With all their telescopes, the astronomers living in the golden light of Arcturus or the diamond blaze of Canopus would be unable to detect the least glimmer of the conflagration that had destroyed the seat of Adam and his descendents, just as now they are totally ignorant of its existence.

Of course, both the Gegenschein and the Zodiacal Light are too diffuse to be studied with telescopes, which, so to speak, magnify them out of existence.

And we are to remember that there were no great telescopes in the year 1729.

Given an effective magnifying power of five thousand diameters, which will perhaps be possible at the mountain observatories as telescopes improve, and we should be able to bring the moon within an apparent distance of about forty miles, while the corresponding distance for Mars would be more than seven thousand miles.

He was convinced by the revelations of his telescopes, continually increasing in power, that Mars was more like the earth than any other planet.

The reader may easily believe that the telescopes had plenty of custom on that August morning in 1866, for everybody knew of the dangerous undertaking which was on foot, and all had fears that misfortune would result.

They remained a few minutes on that highest point of land in Europe, a target for all the telescopes, and were then seen to begin descent.

It even had a moona seared, rocky body a couple of thousand miles in diameterand it also had an inexplicable wobble, as if it were rotating about a common center of gravity with some massive object, one that the telescopes could not detect.