首页> 外文期刊>Sky & Telescope >Past, Present & Future
【24h】

Past, Present & Future

机译:过去,现在,将来

获取原文
获取原文并翻译 | 示例
           

摘要

In the western reaches of the constellation Orion, the Hunter, floats the open cluster NGC 1662. It's pretty easy to find -draw a line from Gamma (γ) Orionis westward to Pi~1 (π~1) Orionis and on another couple of degrees and you'll spot it. The cluster at first appears small and distant. Half of that perception is accurate -it is small, only 8 light-years in diameter, compared to 20-50 light-years for most of the better-known Messier and Caldwell clusters. But NGC 1662 isn't particularly far off. At just over 1,400 light-years away, it's only slightly farther than the Orion Nebula (~1,340 light-years) and considerably closer than most of the other prominent NGC clusters in this stretch of sky. In fact, the Orion Nebula, NGC 1662, and the giant molecular clouds around Lambda (λ) Orionis are all roughly the same distance from the Sun.
机译:在西部地区的星座猎户座,猎人浮动开放的集群1662.它非常容易发现 - 从伽玛(γ)orionis向西到Pi〜1(π〜1)orionis以及另一对 学位,你会发现它。 群集起初出现小而遥远。 感知的一半是准确的 - 很小,直径只有8个光年,而大多数较为知名的凌乱和考德韦尔群集相比,直径为8岁。 但NGC 1662并不截然不同。 距离距离超过1,400岁的光年,它略微比猎星云(〜1,340光年)略微更远,比大多数其他突出的NGC集群在这段天空中的大多数突出的NGC集群更近。 事实上,羚羊(λ)orionis周围的orion星云,Ngc 1662和巨型分子云都与太阳大致相同。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号