By Plummer H. C. 1875
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This scarce antiquarian e-book is a variety from Kessinger Publishings Legacy Reprint sequence. because of its age, it can include imperfections resembling marks, notations, marginalia and mistaken pages. simply because we think this paintings is culturally very important, we have now made it on hand as a part of our dedication to holding, conserving, and selling the worlds literature.
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Extra resources for An Introductory Treatise On Dynamical Astronomy
The morning sky of Mars is usually clear. But around noon puffy white clouds begin to appear, small at can see them best in the late afternoon, These white clouds are thought temperatures first, to two hours or so before sunset. be moisture produced as the afternoon sharply. Usually they fall then they grow larger. You hang high in the Martian sky, sometimes twelve miles above the planet. The yellow clouds are more difficult to see. They tend to blend with Martian landscape. Generally they hang low over the ground and sometimes remain for several weeks in the same area.
At the equator of the planet at high noon the temperature would be in the neighborhood of 75° we would consider balmy spring weather. , what North Pole, the mercury would plunge sharply to 94° F. below zero. But by going to the opposite end of the planet, to the South Pole in summer, you could bask in the sun and watch your thermometer register a comfortable 50° F. If you decided to cross one of the Red Planet's large deserts, you would be fairly comfortable, for the desert temperatures range from 15° F.
Coblentz at the Lowell Observatory measured the Red Planet's temperatures by using an instrument called is the thermocouple. Although these is, measurements were made in the 1920's they are considered quite accurate today, even though astronomers now use better instruments to measure the temperatures of the distant planets. If you took a sight-seeing trip across Mars, here are the hot and cold areas you could expect to pass through. At the equator of the planet at high noon the temperature would be in the neighborhood of 75° we would consider balmy spring weather.
An Introductory Treatise On Dynamical Astronomy by Plummer H. C. 1875