The eccentricity of earth's orbit is 0.016710219. This is a measure of how elliptical the orbit is. Earth's orbit is not a perfect circle, but the eccentricity shows that it is not a very pronounced...
of course not. But the sun is somewhat special in the fact that it is a lone star, most stars exist as part of binary or tertiary systems and other multi star clusters.
a sunspot is a area on the sun's atmosphere
a solar flare is a very hot surface of the sun.
-stephanie kinghorn-
a sunspot is a area on the sun's atmosphere
a solar flare is a very hot surface of...