When thin clouds or tiny airborne particles wash over the Sun or Moon in the sky, a colorful phenomenon called the atmospheric corona may encircle these bodies like a crinoline skirt. The spectacle consists of two parts: a bright glow (known as the aureole) with a smoggy orange fringe centered on the object, and a series of fainter colored rings (graduating from blue on the inside to red on the outside) surrounding the aureole. You can photograph both with DSLR or manual cameras. Here’s how.Astronomy magazine subscribers can read the full column for free. Just make sure you're registered with the website.