planetary nebula

planetary nebula的基本解释

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行星状星云

planetary nebula所属的单词分类

Astronomy / 天文 [220]

white giant  ·  visual magnitude  ·  red dwarf  ·  pole star  ·  outer planets  ·  orbital inclination  ·  orbital eccentricity  ·  muttnik  ·  interstellar dust  ·  inner planets

与planetary nebula相关的网络例句 [注：此内容来源于网络，仅供参考]

Covering an area surrounding the dusty Keyhole Nebula (NGC 3324) near picture center, the image spans about 40 light-years within the larger Carina Nebula at an estimated distance of 7,500 light-years, Like the more northerly Orion Nebula, the bright Carina Nebula is easily visible to the naked-eye.

船底座星云的推算距离为是7，500光年，所以这幅影像呈现了船底座星云约四十光年的区域。

Caption:: The Trifid nebula (Messier 20), named after its three-lobed appearance caused by dusy lanes crossing its bright core, is a combination of an emission nebula and a reflection nebula.

这是位於人马座的三叶星云，又名三裂星云和 M20，这个名源自它的外观，好像由三块不同的东西所构成似的。

Just below the Southern Cross on the far left is the dark Coal Sack Nebula, and the bright nebula on the far right is the Carina Nebula.

南十字座左下方的是黑暗的煤袋星云，而最右侧明亮的星云是船底座星云。

与planetary nebula相关的网络解释 [注：此内容来源于网络，仅供参考]

planetary nebula：行星状星云

星云的形状不一,明亮程度亦不同,就形态上可分弥漫星云(diffuse nebula)行星状星云(planetary nebula)及超新星残骸(Supernova remnants)等3种,弥漫星云广阔稀薄且不规则无定形,后2者为恒星演化末期所造成的.

bipolar planetary nebula：双极行星状星云

bipolar outflow 偶极外向流 | bipolar planetary nebula 双极行星状星云 | blazar 耀变体