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蟹状星云
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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
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coincidence-anticoincidence telescope
coincidence argument
coincidence circuit
coincidence counting
coincidence counting method
coincidence curve
coincidence detection
coincidence detector
coincidence effect
coincidence measurement
coincidence measurement setup
coincidence method
coincidence number
coincidence prism
coincidence problem
coincidence range finder
coincidence rate
coincidence-reading device
coincidence site lattice
coincidence spectroscopy
coincidence spectrum
coincidence structure
coincidence surface
coincidence theorem
coincident
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