Every Star Map is astronomically accurate. Using the HYG star catalog (from ESA's Hipparcos mission) and all 88 IAU constellations, the engine computes each star's position as it appeared from your exact coordinates at your exact moment.
The sky is projected onto a circular chart using stereographic projection - the same technique astronomers have used for centuries. Brighter stars appear larger, dimmer stars fade to points, and positions are true to what you'd have seen.
The output is rendered as crisp vector geometry that scales cleanly from a phone screen to a framed 24×36″ print.