The redshift of galaxy spectral lines is roughly proportional to the distance between the galaxy and us. He used Doppler effect to explain this phenomenon
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The redshift of galaxy spectral lines is roughly proportional to the distance between the galaxy and us. He used Doppler effect to explain this phenomenon at that time
Chinese name
Hubble relationship
Meaning
Redshift of galaxy spectral lines
Interpretation
Explain with Doppler effect
H value
50~75
Hubble constant The ratio of the retrogression velocity of a star system to the distance in Hubble's law is a constant. The unit of H is usually km/(second · millionth of a second difference). It is generally believed that the value of H should be between 50 and 75
