ultrared

Objects in the outer solar system tend to be red, caused by the chemical reactions induced by radiation, but the cold classicals are even redder — ultrared, astronomers say.

She’s abandoned her ultrared lipstick and nail polish and her tumed-up collars and has taken up moderate pinks and going on diets, and grooming.

The extension, too, of the visible solar spectrum into the ultra-violet by Corun, Mascart, and others, adds much to our knowledge of the sun; while the photographs of Abney in the ultrared increase our information in a direction less expected and certainly less easy of attainment.