### Supergalactic Coordinate System

(celestial coordinate system system based upon the supergalactic plane)

The **Supergalactic Coordinate System** is a
spherical coordinate system used for directions in the
Celestial Sphere,
fixed to the **Supergalactic Plane**, and the line intersecting that
plane with the Galactic Plane.
Spherical elements:

**Supergalactic Longitude**: **SGL** or *l* "east" from the line along the intersection, basically galactic coordinates l = 47.37°, b = +6.32°.
**Supergalactic Latitude**: **SGB** or *b*.

The Supergalactic Plane is a plane of nearby Galaxy Clusters
including the **Virgo Cluster**, the Great Attractor
and the **Pisces-Perseus Supercluster**.

(*coordinate system,celestial sphere*)
http://en.wikipedia.org/wiki/Supergalactic_coordinate_system

http://astronomy.swin.edu.au/cosmos/S/Supergalactic+Coordinate+System

**Referenced by:**

Celestial Coordinate System

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