Cartes du Ciel / SkyChart

Traditional Finder Chart

Generate a clean, printable star chart around exact J2000 coordinates. Use it alongside the interactive Aladin atlas for field work, observing notes and target finding.

Interactive Sky Chart FOV Calculator

Chart centre

Coordinates & scale

Target All 110 Messier objects are included, plus the curated southern NGC/IC collection. NGC/IC aliases use the same shared AstroClassifieds observing catalogue.

RA hours

Dec degrees

Chart field of view degrees Use a larger value for a wide finder chart and a smaller value for detailed star-hopping.

Output size

Use with the atlas

Two complementary views

Aladin shows photographic survey imagery and exact framing. SkyChart gives you a conventional star-chart view that is easier to print or take into the field.

Server-rendered chart

Orion Nebula

RA 5.588h · Dec -5.39° · 4.50° field

Generate a traditional chart The PNG is rendered on the AstroClassifieds server by Cartes du Ciel.

Ready to generate a finder chart.

Finder charts are planning aids. Coordinates are J2000 equatorial coordinates and the displayed catalogue depth depends on the SkyChart catalogues installed on the server.