Skywatch for the week of July 5, 2021
Today, Monday, July 5 th, at 6:27 pm, the earth will reach aphelion – that’s the point in our planet’s slightly elliptical orbit where it’s farthest from the sun. On average, we're about 93 million miles from the sun, but right now we are roughly 94 and a half million miles out. So how come we're having summer? Well, not everyone on earth is experiencing summer; winter has just begun for folks south of the equator. Our seasons aren't caused by any variation in the earth-sun distance; after all, that extra million and a half miles only makes for a tiny 2% difference. Temperature change...
Source: wqcs.org