The effect of Faraday rotation on the helicity computation using observations from the Solar Magnetic Field Telescope at the Huairou Solar Observing Station.

法拉第效应对利用怀柔磁场望远镜观测的矢量磁场计算电流螺度的影响。

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The Hubble's new Wide Field Camera 3 (WFC3), mounted on the space telescope in 2009, changed all that.

哈勃太空望远镜上的新一代照相机——广角相机3号（WFC3），改变了上述状况，该相机是2009年安装上去的。

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The amount of sky that you can view through a telescope is called the real (true) field of view and is measured in degrees of arc (angular field).

通过望远镜你所能看到的天空的范围称作真实视场，以弧度值(角视场)来度量。

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They certainly have the concept on the drawing board - it's called the Wide-Field Infrared Survey Telescope, or WFirst.

BBC: Dark discussion ahead for Europe and US

On Thursday, the telescope's Wide Field Camera was replaced, giving the telescope an even deeper view into space - and thus into the history of the Universe.

BBC: Hubble gyros fixed after struggle

Further news had to wait until astronauts installed the Wide Field Camera 3 on the Hubble telescope in 2009 and again trained it on the candidate, which had - in an SCP tradition of naming supernovae after composers - already been named after jazz musician Charles Mingus.

BBC: Supernova 'Mingus' could shed light on dark energy