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单词
Gum Nebula
释义
Gum Nebula
Encyclopedia
理学
原行星状星云
释
Gum Nebula
古姆星云
已知的最大角尺度的发射星云。延展角度大约40°(月亮在天空中的尺度为0.5°),横跨南天船帆星座和船尾星座。又称Gum 12。
Astronomy
Gum Nebula
古姆星云
随便看
index of cycle
index of diffraction
index of dispersion
index of diversification
index of drilling engineering quality
index of economic liberalization
index of eigenvalues
index of environmental pressure
index of growth
index of imprimitivity
index of inertia
index of irregularity
index of morphological typology
index of multiplicity
index of next larger scale charts
index of nilpotency
index of nutritional quality
index of polydispersity
index of refraction
index of relative nullity
index of reliability
index of road freight transportation quality
index of road passenger transportation quality
index of road transportation safety
index of rotation
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