HOW BIG THE EARTH IS?

 

EARTH AND SMALL PLANETS
BIG PLANETS
SUN
OTHER STARS
BIG STARS
Now(August) is a good time to see Antares in the sky. This is the red (like Mars!) star you can find in the constellation Scorpius. You can not miss it. Just, at 9:00-10:00 P.M. (if no clouds) look at the South. You will find the star at about 25-30 degrees above the horizont. Look, the blue star is called, Rigel...it has nothing to do with Rigol.

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