Supergalactic coordinate system
Supergalactic coordinates are
coordinates in a
spherical coordinate system which was designed to have its equator aligned with the supergalactic plane, which is the (two-dimensional)
plane going through the structure formed by
clusters of galaxies close to the
Sun. The zero point for supergalactic longitude is defined by the intersection of this plane with the galactic plane.
Definition
- The North Supergalactic Pole (SGB=90 deg) lies at galactic coordinates (l=47.37 deg, b=6.32 deg).
- The zero point (SGB=0 deg, SGL =0 deg) lies at (l=137.37 deg, b=0 deg)
See also
External references