英语翻译If the galaxy is smooth and rounded,exactly how rounded does it appear?Is it more or less Completely round,very flattened and 'Cigar shaped',or somewhere In betweenHow a galaxy appears depends on the angle we look at it.When we look at a

英语翻译If the galaxy is smooth and rounded,exactly how rounded does it appear?Is it more or less Completely round,very flattened and 'Cigar shaped',or somewhere In betweenHow a galaxy appears depends on the angle we look at it.When we look at a
英语翻译
If the galaxy is smooth and rounded,exactly how rounded does it appear?Is it more or less Completely round,very flattened and 'Cigar shaped',or somewhere In between
How a galaxy appears depends on the angle we look at it.When we look at a disk galaxy from the side,the disk appears as a thin line.This may be all there is,it may have a bulge in the middle,or the disk might be embedded in some larger fuzziness.If the galaxy isn't very thin,or you can see spiral arms,then the disk isn't edge on and you should choose No
There is often a bulge of stars at the centre of a disk galaxy.If your answers to previous questions have indicated that the galaxy is an edge-on disk we would like to know about its bulge.Most bulges appear roughly round in shape.However,if you notice a bulge that appears square or rectangular,then please click Boxy.These are often rather subtle!If you don't see any bulge,then answer No Bulge,otherwise click Rounded
A straightforward question — no matter how many arms there are,or how obvious they are,if you can see them then click the Spiral button
This question is a little tricky.Do the spiral arms wrap Tight around the galaxy's nucleus,or are they Loose or perhaps some Medium between the two?
Spiral galaxies come with various numbers of spiral arms.How many distinct arms can you see?The correct answer is often not very clear — spiral arms can be messy,so a little imagination helps.If you're uncertain,say between 2 or 3,just give your best guess.If you can see there are spiral arms,but you really Can't tell how many,then you have the option of saying so.
Some galaxies have a straight,often fairly short,bar at their centre.For spirals,the arms will sometimes start from the end of the bar.Only answer Bar here if you see a bar feature,not just a rounded bulge.
Galaxies with a disk may also have a central bulge.Compared to the rest of the galaxy,for example any spiral arms,disk or bar,how prominent is the bulge?This is a bit of a tricky question,but just click the answer that you think best describes the bulge.Your answer can range from No bulge to Dominant,if the galaxy is mostly bulge with perhaps a barely visible disk or spiral arms.It's sometimes possible to be asked this question for an image where the whole galaxy appears like a bulge (in which case we call it an elliptical galaxy),for which the correct answer would be Dominant.However,for such objects you'll usually have answered 'Smooth' to the first question (as long as they don't have a bar,etc.) and so would not be asked this one.
Until now we've asked you to concentrate on the galaxy itself.Now you can also look a little way around the galaxy.If there's a ring or a possible lens or arc in the image,if the galaxy is disturbed or irregular,or if there is something else odd,then click Yes here.

英语翻译If the galaxy is smooth and rounded,exactly how rounded does it appear?Is it more or less Completely round,very flattened and 'Cigar shaped',or somewhere In betweenHow a galaxy appears depends on the angle we look at it.When we look at a
如果银河队是光滑的,并且近圆形,究竟是如何出现的?圆形呢它是圆的,或多或少完全夷为平地,和“雪茄形状非常”,或在两者之间
如何取决一个星系的角度上我们看着它.当我们看一个磁盘星系从侧面,磁盘,看起来就像一条细线.这可能是所有有,也会有凸出在中间,或磁盘可能是嵌入在一些较大模糊性.如果银河队并不很薄,或者你可以看到螺旋臂,然后磁盘不是边,你应该请选择“否”
通常会有胀的恒星在星系的中心,一个磁盘.如果您的答案之前的问题表明星系是一个edge-on磁盘,我们也想知道关于它的优势.大多数鼓起大致处于是圆形的.然而,如果你注意到一个方形或矩形胀的出现,那么请点击Boxy.这些通常是一些相当微妙的!如果你看不出有任何鼓包,然后回答不胀,否则点击圆
一个直截了当的问题——无论多少武器都有,或者他们有多么明显,如果你能看到它们然后点击螺旋按钮
这个问题有些棘手.做包紧旋臂绕著星系的核,或者他们是松或也许一些介质之间的两个人吗?
螺旋星系的数量来与不同的旋臂.多少种独特的武器你能看到什么?正确的答案是常常不是很清楚——螺旋臂可以凌乱,所以一点想象力是有帮助的.如果你不确定,2或3,说之间仅仅给最好的猜测.如果你可以看到有螺旋臂,但你真的不能告诉多少,然后你可以选择这么说.
有的星系有直,经常相当短,酒吧在他们的中心.对螺旋,手臂会有时开始时的一端,酒吧.这里唯一的回答酒吧,若你看到一个酒吧特征,而不仅仅是一个圆形的优势.
与一个磁盘也可能星系中心都有一个优势.比银河系的其他部分,例如任何螺旋臂、磁盘或酒吧,如何突出的是胀了?这只是一小部分需要慎重对待的一个问题,但只要按一下答案,你认为的最佳描述是优势.你的答案的范围可以从没有膨胀来主导,如果银河队大多是与也许是几乎不可见的胀盘或螺旋臂.有时,可能被问及这个问题时的一幅照片为整个星系的地方显得像一个凸出(在这种情况下,我们称它为椭圆星系),其中,为正确的答案将会占据统治地位.然而,你通常都会有这样的物体的光滑的回答第一个问题(只要他们没有一间酒吧,等等),所以就不会问这一个.
到目前为止,我们已经问过你专注于银河系本身.现在你也可以看起来有点法子规避星系.如果有一圈或透镜或弧可能在这幅画里,如果银河队打搅或不规则,或者如果有一些其他奇怪的事情,然后点击是在这里.