Redshift

Feb 2020
3
0
Bangladesh
Galaxies at a distance of 10^(26.3 )m have a redshift of around 0.002.
Based on these numbers, what is the value of Hubble's constant in this universe? Enter your answer in km/s/Mpc (a parsec is 3.08×1016m ).:
 
Mar 2019
861
46
cosmos
哇!So professional astronomical issues appear in this forum...踢馆啊?
This tramp in cosmos suggests that you should be a bit faithful (有点诚意), at least introduce what " a redshift of around 0.002" means.
 

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