The usefulness of stars is only the uses we have found for them. Stars are useful in navigation, done the old fashioned way with a sextant and compass.
because it would be hq3ui5qth5uitqe4hy
Stars are useful to us in several ways. They provide us with light and heat, they serve as navigational aids for sailors and travelers, and they also help astronomers study the universe and understand the origins of the cosmos. Additionally, stars play a crucial role in the formation of elements that make up our bodies and the world around us.
It may not be the MOST useful - I think that the Big Dipper is more helpful - but Orion is very handy for a number of reasons. First, it is very easy to recognize. Betelgeuse and Rigel are two of the brightest stars in the sky. Second, you can draw imaginary lines from the stars in Orion to other stars, like Sirius, Procyon, and Alpheratz. Third, if you have a good telescope, there are some very interesting stars and nebulae within Orion.
A pointer star is a star that is used to locate or point out another star or celestial object in the sky. It serves as a reference point for identifying the location of other stars or celestial bodies. Pointer stars are often brighter or more easily recognizable, making them useful for navigation or stargazing purposes.
The spectral sequence of stars is not alphabetical because it is based on the temperature of the star, with O-type stars being the hottest and M-type stars being the coolest. The sequence was originally arranged in this manner by Annie Jump Cannon, a pioneering astronomer, in order to classify stars based on their spectral features.
You have it in reverse. Scientific notation is useful for measuring stars.
parallax
Stars tell direction
Binary stars are very useful for determining the mass of the stars and thus any objects orbiting around them.
the same way knowledge of the stars was useful to sailors it let them figure out which way to go in order to get home.
Because the distance between stars is so great.
I d0nt kn0w
They are very useful to scientists because it helps them see stars and planets better
The Sun is a star and we could not live without it.
All are useful, if some one can identify them. They are mainly used today to know in general where certain stars are.
It can be used to determine a Stars lifetime, its different stages.
potek na yan oh ngtatanong nga eh! V - Pearl