the.com/star tracker
A camera that gazes at constellations so spacecraft never forget which way is up.
star mapCompares the sky to an onboard catalog of stars
precisionPinpoints orientation to arcseconds, finer than a hair's width
sun shyMust shield itself from sunlight to see faint stars
old rootsSailors used star sightings to navigate centuries earlier
voyagerTracked Canopus on probes now beyond the solar system