Astronomy Picture of the Day . The Inner Coma of Comet Holmes . ... 13.11.2007 . ... The rare comet remains visible to the unaided eyes of northern observers as an unusual small puff ball in the constellation of Perseus . A high resolution set of images of the comet's inner coma , taken last week and shown above, reveals significant detail. ... The above image of Comet Holmes was made with a small automated 0.38-meter telescope hirable over the web for a small fee. ... November 2007 . ...