Facts about Stars
> There are billions and billions of stars in the sky but only about 2000 stars can be seen with the naked eye on a clear moonless night.
>There are 1022 stars in the Universe.
> About 8000 stars are visible from the Earth with naked eye. Out of this, 4000 stars are visible in the Northern Hemisphere and 4000 in the Southern Hemisphere.
> In either hemisphere, only 2000 stars are visible at any given time.
> The other 2000 are located in the day-time sky and the brightness of the Sun renders them invisible.
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