U.S. Navy Seaman Robert Hill takes celestial readings using a sextant. U.S. Navy Seaman Robert Hill takes celestial readings using a sextant on the signal bridge of the aircraft carrier USS Abraham Lincoln (CVN 72) on Feb. 17, 2005. The Lincoln and its embarked Carrier Air Wing 2 are currently deployed to the western Pacific Ocean. SHARE: Download: Full Size (0.1 MB) Credit: VIRIN: 478198-H-TPM04-178.jpg Photo Gallery