天文观测（Astronomical observations）.doc

天文观测（Astronomical observations） What equipment do you need and how to use the equipment Recent spare nothing, to put his experience over the past few years to master and door, experience ~ and foreign literature and better information on the net do a sorting, a reference to the friends like stars, is a sort of data. Charm is boundless sky ~ this is no doubt for novice and veteran novice ~ may be first time to see the Milky Way and sparkle bright stars and see the details of the planet and touched, veteran is always found in a new and challenge after complete a sense of achievement Observation conditions, observation is definitely the weather. The observation condition always determines your observation target 1 planets and the moon. This celestial light pollution of request is not high ~ as long as you are not in downtown can be ablaze with lights, of course, depending on the ning is the most important. The second is the best not cloud and fog, clouds and fog will cost you a lot of details. 2 observation equipment many novice stressed it is best to use refraction lens, this is correct, but now the domestic market is filled with a lot of low refractive lens, is not to say thats meaningless, but short focals elimination is very poor. This type of mirror is essentially f / 8 below, the color difference is very big ~ in the cloud observation, such as Jupiter and the moon round the mountain when they lose a lot of details. Suggest the novice on the planet, so try to choose telephoto qualitys away, the domestic have to write a good production this kind of mirror, the results are comparable to those obtained and a lot of high quality Ed mirror. Of course, I think new selective reflection is also a very good choice, too long, the coke rate is more than 6, best not only coma is very small, and the adjustment of the optical axis is reduced, for starters, it makes sense to ~ I think this kind of equipment has the following specifications ~ of course the quality is too hard 1.