About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 90. Chapters: 15 Cygni, 16 Cygni, 16 Cygni Bb, 22 Cygni, 28 Cygni, 29 Cygni, 30 Cygni, 33 Cygni, 39 Cygni, 3C 438, 41 Cygni, 47 Cygni, 52 Cygni, 55 Cygni, 57 Cygni, 59 Cygni, 61 Cygni, 63 Cygni, 72 Cygni, AFGL 2591, Albireo, Chi Cygni, Crescent Nebula, Cygnus A, Cygnus Loop, Cygnus OB2-12, Cygnus X-1, Cygnus X-3, Cyg OB2 -8A, Delta Cygni, Deneb, DR 21, Egg Nebula, Epsilon Cygni, Eta Cygni, Gamma Cygni, GJ 1245, Gliese 777, Gliese 777 b, Gliese 777 c, Gliese 806, HAT-P-11, HAT-P-11b, HAT-P-17, HAT-P-7, HAT-P-7b, HD 185269, HD 185269 b, HD 187123 b, HD 187123 c, HD 188753, HD 189276, HD 197036, HD 197167, HD 197488, HD 203857, IC 5146, Iota1 Cygni, Iota2 Cygni, Iota Cygni, Kappa Cygni, Kepler-11, Kepler-11b, Kepler-11c, Kepler-11d, Kepler-11e, Kepler-11f, Kepler-11g, Kepler-16, Kepler-16b, Kepler-22, Kepler-34, Kepler-36, Kepler-36b, Kepler-36c, Kepler-40, Kepler-40b, Kepler-42, Kepler-42c, Kepler-5, Kepler-5b, Kepler-6, Kepler-6b, KOI-74, KOI-81, Kronberger 61, KY Cygni, Lambda Cygni, List of stars in Cygnus, Lynds 1014, M1-92, Messier 29, Messier 39, Mu1 Cygni, Mu Cygni, NGC 6819, NGC 6866, NGC 6871, NGC 6881, NGC 6884, NGC 6946, NGC 7008, NGC 7026, NGC 7048, NML Cygni, North America Nebula, Nu Cygni, Omega1 Cygni, Omega2 Cygni, Omega Cygni, Omicron1 Cygni, Omicron2 Cygni, Omicron Cygni, Pelican Nebula, Phi Cygni, Pi1 Cygni, Pi2 Cygni, Pi Cygni, Psi Cygni, Pulsar kicks, P Cygni, Rho Cygni, Sadr Region, SAO 49910, SAO 49921, SAO 49936, SAO 49951, SAO 49986, SAO 49991, SAO 49997, SAO 50004, Sigma Cygni, Tau Cygni, Theta Cygni, Tulip Nebula, T Cygni, Upsilon Cygni, V1057 Cygni, V1500 Cygni, V1668 Cygni, V1974 Cygni, V476 Cygni, Veil Nebula, WR 136, Xi Cygni, Zeta Cygni. Excerpt: Cygnus X-1 (abbreviated Cyg X-1) is a well-known black hole and galactic X-ray source in the constellation Cygnus. It was discovered in 1964 during a...
