ocr: Early marine sextants SEXTANT a were fixed hand-held telescope and leveled had Choose an area... on the horizon. Explore the sextant! A radial arm is moved Light rays against an arc, scaled in from known star Index degrees. Adjust the radial Mirror arm until a known star's Horizon image reflects from the Mirror index mirror, then off the Telescope horizon mirror and down Horizon the telescope until it lines light up with the horizon. - rays - - - - / - - - - - à A - * TA c - - - a 4 on The the radial scale arm's gives the position - - - - o - - - star's elevation. - Scale 1 Read Elevation
