THE AMAZING WORLD OF ASTRONOMY
Astronomy, the study of the
motions and nature of the sun, moon, stars, planets, and other
celestial bodies. Thus, astronomy might be called the science of
matter and energy as they are manifested in the universe.
Astronomers bring to this study the resources of the
mathematician, the chemist, and the physicist. Until recent
years, astronomy was a purely observational science. However, the
advent of artificial satellites and space probes has freed the
astronomer from the limitation of only being able to peer into
his celestial laboratory with a telescope. The space age has
presented the astronomer with a means of injecting his
instruments into his laboratory, of carrying them into close
proximity of the celestial bodies he is studying. Hence,
astronomy has become an experimental science. (See also
Space Astronomy;
Space Exploration.)
Astronomy is one of the oldest of the
sciences. Ancient astronomers observed the motions and relative
positions of celestial objects for ritual purposes or in an
effort to foretell the destinies of nations and individuals, to
measure time, to predict eclipses, to establish dates for
planting, and for navigation. The ideas and methods for the
solution of the practical problems have long since been worked
out. Present-day advances in practical astronomy consist mainly
of refinements of techniques and instrumentation to meet the
contemporary demands for accuracy. (See also Calendar; Time.)
Few astronomers are now actively
concerned with the practical side of astronomy. Such matters are
usually dealt with by the staffs of national observatories, such
as the U.S. Naval Observatory at Washington, D.C., and the Royal
Greenwich Observatory, Cambridge, England. Most of the time and
effort of astronomers is now expended in theoretical or
observational studies of the structure of the universe.
The bulk of astronomical work is
carried on by highly trained astronomers in elaborately equipped
university and government observatories. However, unlike those
branches of science in which research and invention are confined
to the laboratory, astronomy offers participation to hundreds of
amateur observers throughout the world. Amateurs gather
scientifically useful data on variable stars and novas,
artificial satellites, meteors, comets, sunspots and solar
flares, auroral displays, and changing features on the surfaces
of the moon and the planets.
This sector of my site starts with Astronomy but
branches off into many other topics which you will find in the
form of complimentary links throughout all of the other pages.
These other topics are in some way relative to the sectors of the
pages that they are found in. We hope you find this site
enjoyable and informative and if you feel that something else
needs to be added to it please feel free to e-mail me.