What is a good telescope for Variable Stars?Ed Wiley
B。当我们想观察天体的运动时,使用望远镜并在不同时间记录位置(Use a telescope and record the positions at different times)是一个好方法。用肉眼长时间观察(Observe with the naked eye for a long time)很难准确观察到天体的运动。显微镜(Use a microscope)不适合观察天体运动。双筒望远镜(Use binoculars)对于...
said Alice.“I must be shutting up like a telescope.”And so it was indeed: shewas now only ten inches high,and her face brightened up at the thought that shewas now the right size for going through the little door into that lovelygarden.First,however,she waited for a few minutes to ...
A good 90mm refractor is worth your consideration, depending on the light pollution in your area. My AT92 is my most commonly used scope. A C5 or C6 with a focal reducer would be my second recommendation. A 6 inch collapsible dob would be another option, if you can find a coma correct...
A solar telescope is a telescope that has been specifically constructed to observe and take pictures of the sun using the visible spectrum of light...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ho...
a如果词汇贫乏,词义含混就会造成理解和表达的障碍。 If the glossary is deficient, the word meaning ambiguous can create the understanding and the expression barrier. [translate] a. Psychological Factors in English Teaching at Middle School . 心理因素在英国教学在中学 [translate] a电磁阀坏 The solenoid...
(discover) not only helped fight malaria,but proved the ability of women in the field of medicine.Yuan Di,16:My role model is a scientist of unparalleled (无与伦比的) achievements.As the leading engineer of China's 500-meter Aperture Spherical Telescope,his story shows me (64)___ makes...
选用“have,has,had,there is,there are,there was,there were”填空.1) I ___a good father and a good mother.2) ___ a telescope on the desk.3) He ___a tape-recorder.4) ___a basketball in the playground.5) They ___ a nice garden.6) My father ___ a story-book last year....
Will you jion in the historic effort 我们可以伪造反对这些敌人盛大和全球性联盟,南北、东部和西部,可能保证更加卓有成效的生活为所有人类?意志您jion在历史的努力[translate] a迈克有什么?他有一个望远镜 What does Mike have? He has a telescope[translate]...
根据第二段中“The most direct approach is to take a picture of it with a telescope. However, more effective way is to use "the Doppler technique". This involves analyzing starlight for evidence that the star's movement is affected by the gravitational pull of a planet. (最直接的方法是用...