Galactic Coordinate System
a year ago
- #astronomy
- #galactic coordinates
- #Milky Way
- The galactic coordinate system is a celestial coordinate system centered on the Sun, aligned with the Milky Way's center.
- It uses spherical coordinates with galactic longitude (l) and latitude (b), analogous to terrestrial longitude and latitude.
- The system was standardized in 1958 by the IAU, adjusting previous definitions by 32° in longitude and 1.5° in latitude.
- The north galactic pole is located in the constellation Coma Berenices, and the south pole in Sculptor.
- Sagittarius A* marks the Galactic Center, with coordinates slightly offset from the defined center but within error margins.
- Conversion formulas exist to transform between equatorial and galactic coordinate systems.
- Rectangular variations of galactic coordinates are used for computing space velocities of galactic objects.
- The galactic equator passes through several constellations, including those traditionally associated with the Milky Way.