古德说这些图像由大熊湖天文台的1.6米通光孔径离轴新型太阳天文望远镜拍摄。
Goode said that the images were achieved with the 1.6 m clear aperture, off-axis New Solar Telescope (NST) at BBSO.
孔径越大，它收集的光越多，成像的亮度和清晰度就越好。
The larger the aperture, the more light it collects and the brighter and clearer the image will be.
这不是星星自身的光环，而是由于望远镜的圆形孔径光阑以及光的物理特性造成的。
This is not the star's disk you are seeing but the effect of having a circular aperture in your telescope and due to the nature of light.
为了计算出射光瞳，可将孔径(单位mm)除以目镜的放大倍数。
To calculate exit pupil, divide the aperture (in mm) by the power of the eyepiece being used.
分析结果证明，在适当扩大孔径光栏宽度后，在时间方向上的动态空间分辨率可提高15～20％。
The results show that the dynamic spatial resolution in time direction has been improved by 15-20% when the aperture stop width is properly enlarged.
针对天然卫星相对较亮而且孤立的特点，本文选取了主流测光方法中的孔径测光方法进行探讨。
Given to the configuration of natural satellites, we select aperture photometry from major methods as our main study contents.
给出该孔径的光瞳函数以及三种不同型的结构形式，并导出它的调制传递函数的解析表达式。
The pupil function, analytical formulas of its corresponding modulation transfer function (MTF) and three configuration models have been given.
最后，利用亮星得到的生长曲线对通过最优孔径测得的初始星等进行校正，能较好地提高暗星的测光精度。
Finally, using a growth curve from bright stars to correct the instrumental magnitude can improve measure precision of faint stars quite well.
研究结果表明：回波强度受导引头光路中光学镜头的相对孔径、摄像管靶面倾斜和离焦的影响较大；扫描激光光束的入射角等因素对回波强度也有一定的影响。
Research results show that the relative aperture of optical lens, the incline and defocusing of reflection plane in TV seeker optical system reduce the intensity of the "cat's eye" reflection.
系统孔径，常指入瞳 （entrance pupil）或孔径光 （aperture stop），它限制可从已定义视场入射光学系统的光线。
The system aperture, often the entrance pupil or the aperture stop, limits the rays that can enter the optical system from the defined field.
系统孔径，常指入瞳 （entrance pupil）或孔径光 （aperture stop），它限制可从已定义视场入射光学系统的光线。
The system aperture, often the entrance pupil or the aperture stop, limits the rays that can enter the optical system from the defined field.
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