🔭 Scientific and Artistic Foundations of Our Star Maps

At Skylit Studio, our star maps are more than just decorative keepsakes — they are grounded in the same astronomical data used by observatories, educators, and amateur astronomers around the world.

Every map is a visualisation of the sky as it truly appeared — calculated using precise astronomical algorithms and internationally trusted star catalogues.

🛰️ What Data Do We Use?

We blend aesthetic design with accurate celestial positioning using the following astronomical sources:

• Hipparcos & Tycho-2 Star Catalogues
  These form the core of our positional data. Originally compiled by the European Space Agency, they provide highly accurate coordinates and brightness measurements for over 2 million stars.
• Gaia Data Release (ESA)
  Using the most current publicly available release, Gaia enhances the accuracy of star locations and proper motions, refining how each star is positioned on your map.
• Saguaro Astronomy Club Database
  We reference this for deep-sky objects such as galaxies, nebulae, and star clusters — adding depth and context to your sky.
• IAU Official Constellation Boundaries
  To ensure constellation outlines are scientifically correct, we use boundaries defined by the International Astronomical Union (the global authority in astronomy).
• Stellarium Skycultures & Global Star Lore
  Where design allows, we draw on Stellarium’s skyculture resources, showcasing the rich cultural interpretations of the night sky from around the world.

📐 How Are the Maps Constructed?

Our maps are generated using azimuthal projections, centred on the zenith (the point directly overhead) at your chosen location and time. This creates a realistic, circular view of the sky — true to what an observer on the ground would see when looking up.

We apply a stereographic projection — a widely used astronomical method — to preserve the shape and relative positioning of constellations, just as you’d see them in traditional star charts or a planisphere.