Roses are red (and blue)

Walt Lickteig and Steve Timmons, taken near Fort Davis, Texas

The Rosette Nebula in Monoceros (NGC 2237–9/44/46) is one of the most popular targets on the sky, but the imagers of this shot have achieved a dramatic red/blue color palette with SHO filters. The image is a four-panel mosaic representing 110 hours of exposure with a 14-inch scope.