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發表於 2008-5-19 08:52:35
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I also feel that C8 is good enough for public viewing, and that the moon is a much too neglected part of observational astronomy. Last week, I shot the moon with C8 for a few continuous days beside a quite road, catching the attention of a family walking by (parents and their form 1 daughter) with no experience in astronomy. We spent almost 0.5h to 1h everyday catching various features on the moon, from big mare and major craters to small domes, craterlets and rilles. And I explained to them how they form, with the help of the many excellent photos from Charles Wood's The Modern Moon. Observation for about 0,5h also allowed them to see the change in features, like the sunrise in Copernicus.
I've also had many experience in watching planets and the moon with my students on the rooftop of my school in urban area. Frequently, I find that we spend at least one hour on the moon, compared with about 10-20 minutes on planets (usually just one is observable). Sometimes, students say that the planets are too small and can cause disappointment, even if I usually lower their expectation before observation. However, I have never heard such complaint in moon observation.
I guess a major difficulty in moon observation is that one must be knowledgeable in moon so that one knows what to look for in the field of view, which means reading some books. Many may not find the time to do so, not to mention that most books are in English. Also, there are not many public talks to promote a 'observing with understanding' approach to the moon.
Also, from my experience with students, not many of them are as mad or interested about photography as we think they are. The more complicated the set-up, the more remote astronomy is from them. They are more interested in visual observation, the great feeling of seeing challenging features, and understanding what they see (or knowing that no one understands some features that they see). Some even mentioned that they can observe geographic features learnt in Geography classes first hand, which they cannot do on Earth without travelling and viewing from perhaps helicopters.
[ 本帖最後由 astroQM 於 2008-5-19 08:59 編輯 ] |
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