Asked by Oscar
                A star is observed from two positions of Earth in its orbit, in summer and winter. Which of these is the best method to calculate the approximate distance of the star from Earth?
measure the parallax and use it in calculations
measure the red shift of emitted light and use it in calculations
use doppler effect to calculate the shift in light traveling from star to Earth in winter
use doppler effect to calculate the shift in light traveling from star to Earth in summer
is it a pls help me
            
        measure the parallax and use it in calculations
measure the red shift of emitted light and use it in calculations
use doppler effect to calculate the shift in light traveling from star to Earth in winter
use doppler effect to calculate the shift in light traveling from star to Earth in summer
is it a pls help me
Answers
                    Answered by
            Damon
            
    http://lcogt.net/spacebook/parallax-and-distance-measurement/
    
                    Answered by
            Kaitlin
            
    A. Measure the parallax and use it in calculations
    
                    Answered by
            tracyminajj
            
    lui bag, yeah you know its full of them racks..... DAYUUUMMMM
    
                    Answered by
            DreamStan
            
    hell yea Lil crip. I been pimpin in these streets daddy!!!!!!!
    
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