Astronomers use different coordinate systems depending on the scale and context:\n\nEquatorial Coordinate System: For local objects like planets or stars. It uses right ascension (similar to longitude) and declination (like latitude), based on the celestial equator and the vernal equinox.\n\nGalactic Coordinate System: For objects within our galaxy. The reference plane is the plane of the Milky Way, and the zero point is towards the Galactic Center.\n\nInternational Celestial Reference System (ICRS): The standard for most astronomical data. It's based on very distant extragalactic objects and is unaffected by local galaxy movements.\n\nComoving Coordinates: Used by cosmologists for large scale calculations. This system adjusts for the universe's expansion.\n\nTo verify these systems, astronomers compare observational data with their predictions. If they match, the coordinate system is deemed correct. Corrections for Earth's rotation, orbit, and axis movements may also be applied for precision.
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