I never built my own telescope, but a lot of real astronomers did, and many of the earliest members of the profession made considerable contributions to our understanding of optics.

尽管我从未造出一个我自己的望远镜，但是很多真正的天文学家却做到了，同时很多这个专业的成员为我们理解光学作出了重要的贡献。

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The larger the aperture of a telescope, the more resolution the instrument is capable of, assuming the telescope optics are of high quality.

望远镜的孔径越大，该设备分辨率就越好，前提是该望远镜的光学设计良好。

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We are used to calling an instrument of this kind in optics a telescope, and the radioastronomical counterparts are therefore briefly named "radio telescope" .

在光学上我们通常称这种类型的仪器叫望远镜，因而射电天文学上的对应物简称为“射电望远镜”。

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In visible light, all stars appear as points, only smeared out into a small circle by the atmosphere and by the optics of the telescope.

ECONOMIST: Planetary formation

In December, Dr Mumma's team will begin another study of the Martian surface using the new technique of adaptive optics at the European Southern Observatory's Very Large Telescope (VLT) in Chile.

BBC: Martian methane mystery deepens

The new image, which scientists revealed on Wednesday (Jan. 9), was obtained on the night of Dec. 28 using a new adaptive optics system at the Gemini Observatory South telescope in Chile.

MSN: Cosmic 'bullets' slam Orion nebula in dazzling photo