If Andrew Keen is correct then who is consuming this deluge of "uninformed political commentary, to unseemly home videos, to embarrassingly amateurish music, to unreadable poems, reviews, essays, and novels" and why? Other blogs may try to be more accurate, but you are never going to get the whole picture - they are unashamed about their lack of impartiality. The rest of the stuff are accessories, such as the mount, tripod, and eyepieces. Those professionals working to objectives can never by definition thereby get you beyond the already known. Because most telescopes show such a small portion of the sky, it is virtually impossible to locate anything just by looking through them.
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This is the thing you actually look into. It didn't used to be so. If you plan to observe deep sky objects from an area with a moderate light pollution - it is best to concentrate on objects like open clusters, double stars, brightest of the emission nebulae and also some bright planetary nebulae due to their high surface brightness. We need to reform rather than evolutionize an information and entertainment economy that, over the last two hundred years, has reinforced American values and made our culture the envy of the world. I view the author as a sad ass soul that has failed to coup with the revolution of the internet. I don't expect that to affect your views any more than yours affect mine.
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Unlike with planets - observing deep sky objects does not necessarily require using high magnifications. I did so for Mars last summer and saw markings even though the planet was low in the sky over a neighbor's roof. What important is the aperture of your telescope, since you need to gather a lot of light. For a 3" scope this would be about x. Oh and watch out for Mobile Social Networks which have through the inbuilt micropayment ability the potential to revolutionise the value of bloggers by enable the respected amateurs to get paid Sun through a small, cheap telescope .
Other factors affect the brightness, but no matter how clever the design, a telescope can utilize only the amount of light the objective gathers and delivers to the system. Jupiter is the planet that consistently shows the most detail in amateur telescopes. Therefore many urbanites give up on them before really trying. Also significant with eyepieces is the apparent field of view expressed in degrees and eye relief expressed in millimeters. Detail on Jupiter is excellent, as is detail on the lunar surface. However keep in mind that only a handful can be seen and details of them will be far less impressive.