Is it moving toward us or away from us?

Question

if you take a spectrum of a star and find that its absorption line of hydrogen which is at 6563A in the lab and is Doppler shifted to 7000A. Is the star moving toward us or away from us? Why?

Answer 1

The star is moving away from you, because the wavelength has increased from 6563A to 7000A. The reason is that as the star moves away from you, the light waves travelling toward you is stretched out, thus longer wavelength. If the star was moving towards you, then the light waves are bunched up, thus compressing the wavelength.

Answer 2

If something is mowing towards us it must look as if it has a shorter wavelength. If away then the wavelengths bust appear longer.. What do you think?

Psst: "The Doppler effect is recognizable in the fact that the absorption lines are not always at the frequencies that are obtained from the spectrum of a stationary light source. Since blue light has a higher frequency than red light, the spectral lines from an approaching astronomical light source show a blueshift and those of receding sources show a redshift."

...and since the speed of light is a product of wavelength L an dfrequency v
c=Lv

My statement above must make sense (I hope).

Have fun!