Maps of the Sky
The positional charts — the all-sky star atlas, the constellation atlas, the Messier and deep-sky atlases, and the bright-star map — each drawn as scalable vector graphics from the real measured coordinates of the stars and deep-sky objects.
- All-Sky Star AtlasAtlas viewSVG sky chart
A whole-sky chart plotting every catalogued star at its real right ascension and declination, sized by apparent magnitude. Rendered as scalable vector graphics directly from the star catalogue's measured coordinates — nothing is invented; a star appears only where the data places it.
- Bright Star MapAtlas viewSVG sky chart
A naked-eye view of the sky showing only the brightest stars, ranked by apparent magnitude. The stars that anchor the constellations and guide the eye across the night.
- Constellation AtlasAtlas viewSVG sky chart
The eighty-eight official constellations, each mapped by the real positions of its brightest stars. A gateway from the familiar patterns of the night sky into the stars, myths, and deep-sky objects each region holds.
- Deep-Sky AtlasAtlas viewSVG sky chart
A map of the catalogued deep-sky objects — galaxies, nebulae, and star clusters — drawn from their measured right ascension and declination, with symbols scaled by angular size. The wider sky beyond the naked-eye stars.
- Messier AtlasAtlas viewSVG sky chart
A chart of the Messier objects — the nebulae, clusters, and galaxies of Charles Messier's eighteenth-century catalogue — each placed at its real celestial coordinates and sized by its apparent extent. The classic target list for a first tour of the deep sky.