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What are the boundaries of the constellations?

Could you direct me on finding information of the boundaries of each constellation.

Are the boundaries listing in RA / DEC? How where the boundaries formulated? If so, then what are they.

If you could direct me in finding this information, it would be deeply appreciated.

The boundaries of the constellations are set by convention, and are indeed defined in RA and DEC, epoch 1875. First proposed by Eugene Delporte in 1930, the boundaries were soon adopted by the International Astronomical Union for naming purposes. You can see the exact boundaries in most serious amateur astronomy star charts, such as the Sky Atlas by W. Tirion.

January 1999, Dave Kornreich (more by Dave Kornreich) (Like this Answer)

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