迄今观测到最大的一颗彗星麦克诺特彗星 据国外媒体报道，日前，英国科学家认为麦克诺特彗星(Comet McNaught)是迄今所观测最大的彗星，其彗尾范围达到地球至太阳距离的1.5倍。
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库克预言，这颗极其明亮的麦克诺特彗星C/2009 R1绝对会让我们的肉眼“不枉此看”。
Cook predicts the especially bright Comet McNaught C/2009 R1 will put on a worthy show for the unaided eye.
以首次发现它的澳大利亚天文学家的名字所命名的麦克诺特彗星C/2009 R1，其明亮强度每四年左右出现一次，库克说。
The intensity of brightness seen in Comet McNaught C/2009 R1—named after the Australian astronomer who first spotted it in September 2009—only occurs once every four years or so, Cook said.
在照片的中间部分，正好从云层下划过的麦克·诺特彗星，构成了照片中最罕见的景象。
On the far right, lightning from a thunderstorm flashed in the distance. Near the image center, though, seen through clouds, was the most unusual sight of all: Comet McNaught.
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