Astronomy Made Simple - download pdf or read online

By Kevin B. Marvel Ph.D.

See the skies in an entire new mild. Take a travel of the universe, from our neighborhood sun approach to the a ways reaches of inner most area. Astronomy Made Simple bargains an entire creation to this technology, from its beginning in precedent days to the differing kinds of super-powerful telescopes scientists use this day. additionally it is special directions on the best way to map the celebrities and comprehend the coordinate process, in addition to enjoyable sidebars, rules for tasks for additional studying, and assets for the scholar or the beginner astronomer.

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As it does so, Mars appears to slow down, reverse direction, and then start forward again. You may have experienced retrograde motion yourself if you have ever been in a car with a manual transmission. Such cars can drift backward slightly when driving uphill from a stoplight. As the driver engages the transmission, the car drifts backward (because the driver took his or her foot off of the brake); nearby objects appear to drift forward slightly, then stop, and finally appear to drift backward again once the car is accelerating.

The idea is to use computers and the Internet to allow astronomers and the public access to stored astronomical data without having to use a telescope. Because there is no “real” observatory, only astronomical data, it is called a virtual observatory. S. observatory will ul- timately include the resources and data of astronomers worldwide, when it may have to be renamed the International Virtual Observatory. This virtual observatory will make it far easier to compare objects in different catalogs, which can lead to new scientific knowledge.

Another Indian astronomer, estimated the circumference of Earth. Using his own approximation for the value of pi (the square root of 10; pi is usually represented as π), he determined that the Earth was about 36,000 km in circumference—not too far off the modern value of 40,075 km. Other than these two astronomers, much of ancient India’s contribution to early astronomy was mathematical, such as the development of the decimal system, including the use of zero and negative numbers, and contributions to algebra.

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Astronomy Made Simple by Kevin B. Marvel Ph.D.


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