Observational astronomy

  • Observational astronomy
  • Imaging of stars
  • Stellar imaging
Abstract from DBPedia
    Observational astronomy is a division of the astronomical science that is concerned with recording data, in contrast with theoretical astrophysics, which is mainly concerned with finding out the measurable implications of physical models. It is the practice of observing celestial objects by using telescopes and other astronomical apparatus. As a science, the study of astronomy is somewhat hindered in that direct experiments with the properties of the distant universe are not possible. However, this is partly compensated by the fact that astronomers have a vast number of visible examples of stellar phenomena that can be examined. This allows for observational data to be plotted on graphs, and general trends recorded. Nearby examples of specific phenomena, such as variable stars, can then be used to infer the behavior of more distant representatives. Those distant yardsticks can then be employed to measure other phenomena in that neighborhood, including the distance to a galaxy. Galileo Galilei turned a telescope to the heavens and recorded what he saw. Since that time, observational astronomy has made steady advances with each improvement in telescope technology.

    観測天文学(Observational astronomy)は、理論天文学に対して、データの記録に関連する天文学の一分野である。望遠鏡やその他の機器を用いた天体の観測の実践である。 科学としての天文学は、遠い宇宙の性質の直接的な実験が不可能であることが、いくらか妨げになる。しかしこれは、膨大な量の恒星現象の観測結果があることで部分的に緩和される。これにより、観測データをグラフにプロットすることが可能となり、一般的な傾向が導かれる。変光星等の特定の現象の近くの例は、より遠い場所での現象の振る舞いを推測するのに用いられる。

    (Source: http://dbpedia.org/resource/Observational_astronomy)