The Flamsteed designation is a convention to name stars introduced by British astronomer John Flamsteed in his work, Historia coelestis Britannica, published in 1712, without Flamsteed's approval. It consists number, followed by the genitive form of the name of the constellations (exemples: 4 Aurigae, 8 Orionis, etc.). The system is often abbreviated by writing the corresponding number with the three letters abbreviation of the constellation (exemples: 61 Cyg, 82 Eri).