You can see through the telescope?December 15th, 2011 at 13:58The Hubble Space Telescope have for the world to see the beauty of the objects in the universe. These pictures were published of the Hubble team can see on television, in books, magazines and the Internet. The perception of the universe, the mysterious and beautiful things of it growing up. Many amateur astronomers longing look at the wonders of this telescope but don't know when observed by the telescope will look like. They often ask the question "What this lens more to where?", "have I seen the Galaxy or nebula?", "looked at by KTV find brilliant theatrical Nebula as the magazine?". In this article I will try to answer a few questions.First, you don't expect to see the same objects in the astronomical magazines such as Astronomy, Sky & Telescope. Those photos were taken by CCD cameras have high sensitivity and long exposure also many other complex equipment is out of the reach of many amateur astronomy lover. This does not mean the average amateur equipment would not have made the school look nice. Many people (including me) have felt happy to run up while observing the skies with amateur telescopes.The Crab Nebula taken by the Hubble through glass. Beautiful full color of the Nebula is only revealed through photography techniques, also with the eye generally don't expect though you can look through large telescopes such as the Hubble Space Telescope organisationYou would expect to see something through a reflector telescope size medium, mirror diameter of about 150-250 mm. will the nebulae visible shape, structure or just a vaporous cloud? The Galaxy will be detailed or just a blur in the microscopes? The Moon and the planet would look like?To answer the above questions are based on many factors, such as: the quality of the glass, the environment around the venue, and the observations of the object being observed. Let's learn a few factors:Environment:The black night sky is very important for a Visual observation sessions as in the countryside or the suburbs of the city. However those who live in the inner city is polluted heavy light can still be observed. The different when observed in region 2 on mainly the ability to identify the fuzzy details. The skyline in the light pollution has magnitude equal to or greater than the blurry detail of the object being observed, so there is no contrast between the background and the details are fuzzy. They do not stand up and the sky is not visible.The sky is as dark as the look was more faint objects. Very bright objects, such as the Moon and the planets in the solar system. The Moon is extremely bright, light pollution is almost not affected. You can photograph the Moon easily by tourist cameras PnS stats on the glass of a telescope. Venus, Jupiter, Saturn are all very easy to observe because they are so light can turn the light pollution. Mars every two years when coming near Earth becomes clearer than normal. The object observed in the best sense of higher multiples. A focal refracting telescopes and microscopes of short focal length is enough to observe the Moon and the planets, for example small glass of China being sold on the market today.The sky after the and before the power failure in Ontario, United StatesLight pollution is the environmental factors to consider in the position of observation. Other factors such as humidity, atmospheric turbulence, the transparency of the atmosphere also has significant impact. High humidity will make the dew down, creating a thin layer of water vapor on the glass causes the phenomenon as mist when looking microscopes. You need a belt or a frost-resistant hat to solve this situation. If not, use a hair dryer to blow up the lenses are also equally effective. Levels in the atmosphere is also a factor that needs attention. A sky full of clouds visible then the observable is not nothing but a thin blind class is not easy to find. When the Moon rises if see a Halo around i.e. atmosphere not to be transparent. Atmospheric Turbulence made the stars flicker, very bad for astronomical observations. At a high sense of multiple image will blur and hardly gain sharpness.Population of amateurs could not avoid many environmental factors, but they tolerate. Imperfect observation environment also can not prevent the population of amateur astronomy to abandon their passion to explore.The diameter of the telescope:Diameter glass objects are important, but more when stressed. The human eye, the baby looked up the Sun will not see anything beyond the bright stars, so we have to use the telescope. The greater the diameter as collectors are more light and transmitted to the eye (as clear view details blurry objects). However, you will not see a big difference when observed by 8-inch glass and glass 12 inch. 12 inch glass look see only the image brighter and louder a bit, in general there are differences but not clear as day and night.Many amateur astronomers be "avid player because the diameter", a truly covet King-sized telescopes do not control. People should avoid the pitfalls. According to I should start a career amateur astronomy with a diameter from 115 mm to 150 mm. Should buy the glasses at the prestigious dealer of brands, avoid buying poor quality glass.In Vietnam generally only sell Chinese telescope. This glass is often cheap, packaged in boxes shaped planet, showy and theatrical Nebula or talking too about magnification, many crossing both the useful magnification optical system, here's your change lenses several times not so good with those who are truly passionate about amateur astronomy.The telescope diameter 250 mm of the HAACObserving skills:You should develop good observation skills to be able to clearly see the value of the telescope you are using. For example, practice skills such as "peripheral vision", move the glass gently to see objects are observed to drift through the field of view. "Peripheral vision" used to observe faint objects such as nebulae, galaxies by looking at the diff out a bit instead of looking straight into it.The human eye has two types of light-sensitive cells: rods and cones. Less sensitive cones in conditions of lack of light so you can not see the colors Dim objects such as nebulae, galaxies and luminous objects like planets still visible color. Rod-shaped cells sensitive to light. But they lie at the edge of the cone cells of the retina, located in the Center. So when you look at the blurry objects i.e. you use the less light sensitive cells, please look at the diff out object to bringing the light through the cones you'll see a lot more detail.The filter plate microscopesThe filter can do explicit details of Galactic Nebula by enhancing the contrast, and prevent the pollution. But the price to pay is that it makes the object more opaque by the block less light. A large glass as long as 300 mm with light pollution filter only shows the bright object equivalent diameter 150 mm in the region does not suffer from light pollution. There are many types of glass: a type of filter has many color to observe planets, light pollution blocking filter, filter, filter the hydrogen-beta .... as I don't use the sort filter without mastering basic skills. However newbies can use Moon filter to reduce glare while observing the full moon.Photo of HAAC Moon filtersMoon and planetsThis is very easy to observe things in the light pollution of the city with the middle-class telescope. Only the object well enough for you to enjoy with the telescope. The craters, mountains, Plains on the Moon always made people excited when seeing. Saturn and the round is one of the 1st stage of the solar system. Jupiter with 4 Galilean Moon and the characteristic cloud is a rare wonders. Mars ice cap with red and pinky is also a spectacular sight. They are one of the few objects have color when seen by amateur glasses.Photo of the Moon look 150 mm telescope of HAAC. The Chinese small telescope may also find to be soSaturn photo looking through the telescope with the naked eye. (HAAC)The clusterThere are two forms the cluster. An open cluster is a collection of many stars in a space with no defined shape. Globular cluster consisting of hundreds of caves, Cave of a thousand stars tight contest into a ball. Both cluster types are looking at are easy with amateur telescopes. They are very nice, very rewarding to observe.Open cluster M52 and globular cluster M13 a look at KTVGalaxies and nebulaeThe shape of the Nebula through telescopes out stars depending on its brightness and the environment around the place of observation. The Nebula Orion trapezium cluster around the show pretty well through small telescopes (The ring Nebula (M57) is also beautiful objects, it's like a thin smoke ring. However can not find two stars in the middle of the ring if observed in places where light pollution despite taking the glass 300 mm also can not. A few other bright nebula visible in polluted places
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