Celestial Coordinate Systems

System colors

Equator, pole markers, and table dots use the first row. Coordinate arcs use longitude / latitude rows. The sphere stays dark in both themes, so it always uses the dark column; the light column only tints the panel dots in light theme. Edit defaults in the script (MCS_COLOR_DEFAULTS).

Equatorial

dark light Equator & poles Longitude arc Latitude arc

Ecliptic

dark light Equator & poles Longitude arc Latitude arc

Galactic

dark light Equator & poles Longitude arc Latitude arc
The Celestial Sphere — drag to rotate · drag star (✦) to move
Star Position (Equatorial)
RA: h
dec: °
drag the star (✦) on the sphere to reposition
Coordinate Systems
Star Coordinates
Eq —
Ecl —
Gal —
Spherical Triangles
Display