Data Sources
Stars
- An Extended Hipparcos Compilation (XHIP); Anderson E., Francis C. (2012) VizieR V/137D
- Tycho-1 Catalogue
Constellation Lines
- IAU Constellation page (via d3-celestial)
- Stellarium (via Sky & Telescope)
Constellation Borders
- Catalogue of Constellation Boundary Data; Davenhall A.C., Leggett S.K. (1989) VizieR VI/49 (via d3-celestial)
Deep Sky Objects (DSOs)
Planet Sizes
Milky Way Outline
- Created by Steve Berardi with QGIS + GDAL from NASA's Deep Star Maps