普通望远镜怎么看太阳投影。。。
，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，， 这句话有语病吧，不明白什么意思 ，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，， ...工作人员 发表于 2011-5-30 21:56 http://www.astronomy.com.cn/bbs/images/common/back.gif
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資料來自 ：﹣
http://www.petermeadows.com/html/observe.html
Observing the Sun
You must be very careful when observing the Sun. Never look directly at the Sun with the naked eye or with any optical instrument. The method I use is to project an image of the Sun using an 80mm refracting telescope on an equatorial mounting. A projection box is attached to the eyepiece holder as shown below. A suitable eyepiece is used to project the whole of the solar disk to the far end of the projection box. Do not use cemented eyepieces as the heat of the Sun will damage them.
A sheet of paper with a blank disk is placed at the far end of the box - such blank disks can be found towards the bottom of this page. The north, east, south and west points are marked on these blank disks. For northern hemisphere observers, the N point must be above the S point and the E point must be to the right. For southern hemisphere observers, the opposite is required i.e. the N point must be below the S point and the E point must be to the left. I place a second sheet of paper marked with a number of horizontal and vertical lines behind the blank disk - such backing sheets can be found towards the bottom of this page. One of these horizontal lines is aligned along the blank disk east-west direction to aid in orientating the projection box. The other lines are useful when making the drawing.
The steps to set up the telescope and make a disk drawing are:
(a) Check that the telescope mounting is level and correctly aligned; place an eyepiece in its holder and remove telescope cap.
(b) Use the shadow of the Sun on the top of the projection box to ensure an image of the Sun appears on your sheet of paper at the far end of box.
(c) Focus the Sun and ensure it fits your circle. If it does not, the distance between the eyepiece and your sheet of paper will need adjusting.
(d) With the telescope drive switched off, place a small sunspot on one of the east-west lines on the sheet behind the blank disk and let it drift. If the spot moves away from the line rotate the projection box. Once the spot moves along the east-west line note the time.
(e) Switch on the telescope drive and place the Sun within your disk circle. You are now ready to draw what you see. I mark the location of a spot in each group first and check they are correctly located within the disk. Then all the other spots are drawn including the outline of penumbral spots. Any faculae present are drawn in yellow.
(f) The date and time (in UT) are noted on the drawing as well as the observing conditions.
Analysis of the drawing should, if possible, be made later the same day. Such measurements as sunspot number and area can be made.
Blank Disks (PDF) 100 mm
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Blank Disks (GIF) 100 mm
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Blank Disks (PS) 100 mm
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Backing Sheets (PDF) 100 mm
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Backing Sheets (GIF) 100 mm
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Backing Sheets (PS) 100 mm
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Blank Disks and Backing Sheets for various disk diameters.
Although I have described the projection method, there are other ways to observe the Sun. A recent article in the magazine Sky and Telescope gives a good summary of how to observe the Sun safely.
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(Google 粗略翻譯) 观测太阳
你必须非常小心，当观测太阳。 切勿直视太阳直射在用肉眼或任何光学仪器。方法我用的是建立一种新的形象，赤道上使用安装一个80毫米折射望远镜。 一个投影盒连接到目镜持有人如下所示。 一个合适的目镜用于整个项目的磁盘太阳投影到尽头的盒子。 不要使用损坏它们凝成目镜为太阳的热量会。
磁盘片空白的纸，被放置在箱子的尽头-这种空白的磁盘可以找到实现这一页的底部。 北，东，南，西点上都标有这些空白磁盘。 对于北半球的观测者时，必须高于N点的S点和E点必须是正确的。 对于南半球的观察员，对面即是要求必须低于N点的S点和E点必须到左边。 我把一盘的第二张纸上标有数字的空白水平和垂直线后面-这种支持表能找到实现这一页的底部。 行其中一个沿水平是一致的空白磁盘东西方向的重新定位，以帮助在投影箱。 其他的行都是在绘图时有用。
步骤设置了望远镜，并作出磁盘图纸是：
（一）检查，该望远镜是水平安装，正确一致;放置在其持有人目镜盖并取出望远镜。
（二）使用中的影子太阳对投影的顶部，以确保新的形象，远远底框出现在您的纸张负债表。
（c）重点太阳，并确保它适合你的圈子。 如果没有，纸张之间的距离目镜和您的工作表将需要调整。
（四）与驱动器关掉望远镜中，将空白的磁盘小西线后面表上的太阳黑子对单的东，让它漂流。 如果点动线远离旋转投影框。 一旦西线点动沿东，记下时间。
（五）驱动开关上的望远镜和地点上绕太阳一周内的。 您现在可以得出你所看到的。 我标记的位置，一组在每个第一现场，并检查他们是否正确磁盘上的位置在。 然后，所有的其他景点，包括绘制轮廓点半影。 目前正在制定的任何光斑为黄色。
（六）的日期和时间（在UT）是图上注意到，以及观测条件。
图分析，如果可能，还可以让后来的同一天。 和面积等衡量标准，太阳黑子的数量可以制成。
空白盘（PDF格式） 100毫米
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空白磁盘格式（gif） 100毫米
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空白盘（聚苯乙烯） 100毫米
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备份表（PDF格式） 100毫米
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支持表格式（gif） 100毫米
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垫底纸（聚苯乙烯） 100毫米
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空白磁盘和备份磁盘直径为各种板材。
虽然我已经描述了投影法，还有其他的方法来观察太阳。 一本杂志最近的一篇文章在天空和望远镜安全地给出了一个很好的总结太阳如何观察。
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