Best Answer: Walking a mile a day would improve your general cardiovascular health. It would give you more stamina and endurance. It would help your resistance to disease. It would build muscle mass in your legs.
A summary of these methods: 1  Cepheid variable stars and their cousins the RR Lyrae stars are the primary distance indicators in the galaxy and the local group. 2  They pulsate radially (basically at the sound speed in the envelope of the star) with a period inversely proportional to the square root of the density.
Thus, astronomers use other units of distance. They use light year to measure distances in space the same way we use Kilometers to measure distances on Earth. Now using measure of light year we can comfortably say that the nearest spiral galaxy â Andromeda is 2.3 million light-years away or nearest star to us is about 4.3 light-years away.