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蟹状星云
释义
蟹状星云
Encyclopedia
理学
蟹状星云
释
Crab Nebula
蟹状星云
金牛座的一团无定形的膨胀气体云。星表中的编号为M1和NGC1952。标准历元J2000为赤经05h34m31.94s,赤纬+22°00′52.2″。角径为7′×4′,视亮度相当于9等星。
Astronomy
Crab Nebula
蟹状星云
随便看
phasing
phasing antenna
phasing camera
phasing method
phasing sensor
phasing technique
phasitron
phasmajector
phasometer
phason
phasor
phasor diagram
phasor method
phasor, phase vector
phasotron
Pha That Luang,,Vientiane, Laos
Phatthalung
Phayre's leaf monkey
PHBV bio-fiber
PHBV纤维
pH control additive
PH curve
PhD school
Phe
pheasant-tailed jacana
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