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M51

M51

M51

M51

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Astronomers speculate that M51's spiral structure is primarily due to its gravitational interaction with a neighboring smaller galaxy .

科学家们推测，与一个相邻的较小的星系之间的引力作用形成了 M51 的螺旋结构。

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Perhaps the original spiral nebula, M51 is a large galaxy , over 60, 000 light-years across, with a readily apparent spiral structure .

也许旋涡星系 M51 原本是一个巨大的星系，直径超过 6万光年，有显尔易见的旋涡结构。

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This gravitational tug of war may also have triggered an increased level of star formation in M51 .

这样的重力拖拽之战也许也是触发 M51 中恒星形成水平高低的原因。

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This dramatically processed color composite combines M51 image data from the Calar Alto Observatory 's 1 . 2 meter telescope.

这张显著增强的彩色合成照片的数据来源于卡拉阿托天文台的 1.2 米望远镜。

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Over 60 , 000light-years across , M51's spiral arms and dust lanes clearly sweep infront of its companion galaxy , NGC 5195 .

M51 跨越了 60,000 多光年，它的旋臂和尘埃带清晰地在它旁边的星系 NGC5195 前方掠过。

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Over 60 , 000 light-years across , M51's spiral arms and dust lanes clearly sweep in front of its companion galaxy, NGC 5195 .

M51 的螺旋臂和尘埃带跨越六万多光年，清晰地扫入伙伴星系 NGC5195 。

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