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Binocular Highlight:A Lonesome Messier

机译:双目聚焦:寂寞的混乱

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I OFTEN WONDER which Messier objects are least often visited by backyard astronomers. There's no way to know for sure, but I suspect the bright Messier that receives the least attention is M55. Why? First, this globular cluster is in Sagittarius, where it's overshadowed by some of the most spectacular objects in the sky. Second, with a declination of –31°, M 55 has a brief window of opportunity for observers at mid-northern latitudes. Indeed, I remember this being one of the last Messiers I tracked down during my initial run through the list many, many years ago.
机译:我经常会发现后天文学家最常访问的是Messier物体。无法确定,但我怀疑受到最少关注的明亮的Messier是M55。为什么?首先,这个球状星团位于人马座,在那里它被天空中一些最壮观的物体所遮盖。其次,M 55的偏角为–31°,为北半球中纬度的观察者提供了短暂的机会。的确,我记得这是许多年前我第一次遍历该列表时发现的最后一个Messiers之一。

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