redshift and doppler effect
redshift is an increase in the wavelength of radiation emitted by a receding celestial object as a consequence of the Doppler effect and the Doppler effect is a tool used to measure frequency changes as light travels to, from, or pass an observer
<span>to improve life for the people in rural and urban areas</span>
True it is in a particular time in the past
The altitude of Polaris (the North Star) is always within about
2/3 of a degree of the latitude of the place where you're standing
when you see it.
Look up the latitude of each place on your list. That angle will be
the altitude of Polaris as seen from that place.
Adelaide, Australia, being in the southern hemisphere, can't see
Polaris at all.
