Astronomy as a Journey

The development of solid-state physics and advances in solid-state technology have made it possible to manufacture stable photodetectors suitable for use in infrared on-board optical-electronic equipment. Successes in these fields of knowledge have made it possible to create in recent years, rulers and matrices of receivers with a high density of sensitive elements. Use of computer ROMs To form the output signal of the equipment it is necessary to measure in turn the electrical signals coming from each element of the line...

After Galileo sent a telescope to the sky for the first time in 1609, the possibilities of astronomical observations increased very strongly. This year was the beginning of a new era in science - the era of telescopic astronomy. Galileo's telescope on present concepts was imperfect, however to contemporaries it seemed to be a miracle from miracles. Everyone, having looked into it, could be convinced that the Moon is a complex world, in many respects similar to the Earth, that around Jupiter four small satellites address, as well as the Moon around the Earth...

The purpose of astrophysics is to study the physical nature and evolution of individual space objects, including the entire universe. Thus, astrophysics solves the most general problems of astronomy as a whole. Over the past decades, it has become a leading branch of astronomy. This does not mean that the role of such "classical" sections as celestial mechanics, astrometry, etc., is not being played. - The role of such "classical" sections as celestial mechanics, astrometry, etc., has diminished...

The asteroids square measure thus little they are thus little, they are tinpot. it's unable to allow them the form of a ball that provides the planets and their nice companions, recalling and pressing their substance. an excellent role during this case is vie by the development of runniness. High mountains on the planet at rock bottom of the bottom "sprawl", because the strength of the rocks isn't enough to resist the load of the many plenty of one cm3, and also the stone, while not crushing, while not ripping, flows, tho' terribly slowly...

Constellations are a locality of the empyrean outlined by boundaries. the full sky is split into eighty-eight-star regions (the call was created at the primary General Assembly of the International Astronomical Union in 1922 in Rome). several constellations retain their names from times of yore. Some names of constellations are connected with Hellenic language mythology, some - with subjects. There are constellations known as animal names. historically, the brightest stars of astronomers are known as the letters of the alphabet with the addition of the name of the constellation...

Astronomers have been dreaming of astronomers for a long time. One of the first and most active promoters of this idea was in the 40-50s L. Spetser from Princeton University. Back in 1946, he prepared a report (then secret) on the benefits of space observations. In 1959, 1962 and 1965, at meetings of U.S. astronomers devoted to the development of a space research program, it was recommended to begin work on the study of the project "Big Space Telescope", and in the fall of 1971, NASA organized a committee to develop this project, which began the program of the Hubble Space Telescope...

Specialized satellites with UV telescopes onboard have been operating in near-Earth orbits for more than 20 years, carrying out astronomical observations. Their instruments have achieved high resolution and perfection...

Let's consider the main types of spectral instruments used in astronomy. For the first time spectra of stars and planets began to be observed in the last century by Italian astronomer Secchi. After his work, many astronomers started spectral analysis. At first, a visual spectroscope was used, then the spectra were photographed, and now the photovoltaic recording of the spectrum is also used. Spectral instruments with photographic recording of the spectrum are usually called spectrographs, and with photovoltaic - spectrometers...

It's hard to tell who invented the telescope first. It is known that ancient people used magnifying glasses. The legend has also come to us that Julius Caesar allegedly looked at the foggy British soil in a telescope during a raid on Britain from the shores of Gaul. Roger Bacon, one of the most remarkable scientists and thinkers of the XIII century, he invented such a combination of lenses, with the help of which distant objects seem to be close to each other when looking at them. History of the first optical observations It is unknown whether it was true or not...

The fact that within the scheme between the orbits of Mars and Jupiter move various tiny bodies, the most important of that compared to the planets ar solely blocks of stone, learned but two hundred years agone. Their discovery was a natural step towards learning regarding the globe around U.S.A.. This path wasn't simple and easy. Who within the epoch of discovery of the primary asteroids might assume that these tiny bodies of the scheme, the bodies, that till recently were typically talked concerning...

Observation of deep space objects includes observation of nebulae, galaxies, star clusters. If you have chosen these objects for telescope observation, you need to consider several conditions for successful research. Firstly, it is a perfectly clear and transparent sky (without dust, fog, clouds), and secondly, it is the absence of any illumination: it can be scattered light of night lamps, light of dawn or light of the moon. How to watch the sky The first thing a novice deep-sky observer should decide is where to observe...

In 1960, Frank Drake, an astronomer at Cornell University, laid the foundation for an experiment called SETI (Search for Extra-Terrestrial Intelligence), in which scientists around the world are looking for signals from extraterrestrial civilizations. Initially, Drake began to monitor radio signals from the stars Tau Keith and Epsilon Eridan, which were considered the most likely candidates for the presence of planets of earth type. Within two months, the antennas were installed in the direction of two adjacent stars, its receiver was tuned to a frequency of 1420 MHz...