Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. The Sun is bright , so bright that it overwhelms the light from other stars even for most satellite-borne telescopes. The field of view covers about 16 degrees, corresponding to 28 million miles at the distance of the Sun - just under half the diameter of Mercury's orbit. Blemishes on the image are camera streaks caused by charged particles.
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