Having not much luck at the vegetable patch earlier that evening, Vickers climbed the Astronomy tower to work on the Nocturnal device again. He neared one of the windows and looked out at the star-filled darkness. The moon was high up in the sky now and the Ravenclaw can see the North Star and the rest of the constellations very clearly.

Gently he brought out the nocturnal and held it up in front of him, centering the North star in the sight hole. He turned the nocturnal so that it would orient properly against the Kochab star of the Big dipper constellation, then squiiiiinted to get a reading on the time arm-- it lined up against one of the grooves that would say it was around 11:30 at night.

Noting it down on his parchment, he picked up the device, planning to drop both devices off when he passes by the Astronomer's office on his way back to his common room.