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User / Roaming the World / Big Dipper in Ursa Major 大熊星座里的北斗七星
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The Plough or the Big Dipper is an asterism of seven stars that has been recognized as a distinct grouping in many cultures from time immemorial. The component stars are the seven brightest of the formal constellation Ursa Major.

北斗星由七颗亮星组成,形似斗勺,易于辨认,故有此名。它的勺头两颗星叫“指极星”,指向北极星,可以帮助我们在夜间辨认方向。

按现代国际星名的命名体系,北斗星属于大熊星座。

  北斗星由七颗恒星即天枢、天璇、天玑、天权、玉衡、开阳、摇光组成。先民们把这七星联系起来,想象成为古代舀酒的斗形,天枢、天璇、天玑、天权组成斗身,古曰魁、斗魁;玉衡、开阳、摇光组成为斗柄,古曰构。天璇、天枢相连成直线并延伸约五倍的距离,就可以找到北极星,构成北极星区。

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Dates
  • Taken: Aug 12, 2010
  • Uploaded: Aug 14, 2010
  • Updated: Dec 21, 2020