From Simi Valley, California, December totally eclipsed Moon hung just a few degrees above the western horizon. The southern half (lower left) of the disk, nearest the umbra's outer edge, is relatively bright.
Spinnaker sign - a neonatal chest radiograph sign of pneumomediastinum. It refers to the thymus being outlined by air with each lobe displaced laterally like spinnaker sails. This appearance may also be termed the thymic wing sign.