业馀天文学 meaning in English

amateur astronomy

So why are scientists , educators and amateur astronomers so excited about the upcoming transit
那麽，为什麽科学家、教育人士和业馀天文学家对即将发生的凌日这麽兴奋呢？
It was not until years later that the first all sky radio map was obtained by amateur astronomer grote reber , who had spent lots of effort in the measurement . he found that there was a fundamental difference
直到后来，经过一位业馀天文学家雷柏grote reber多年的努力和认真地做这方面的测量，才得到一幅全天的射电图。