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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 68. Chapters: 102 Herculis, 104 Herculis, 106 Herculis, 109 Herculis, 110 Herculis, 111 Herculis, 14 Herculis, 14 Herculis b, 14 Herculis c, 29 Herculis, 30 Herculis, 32 Ophiuchi, 42 Herculis, 45 Herculis, 52 Herculis, 60 Herculis, 68 Herculis, 69 Herculis, 72 Herculis, 89 Herculis, 93 Herculis, 98 Herculis, Abell 2199, Abell 39, Alpha Herculis, AM Herculis, Arp 272, BD +17 3248, Beta Herculis, Chi Herculis, Delta Herculis, DQ Herculis, Epsilon Herculis, Gamma Herculis, GD 358, GD 362, Gliese 623, Gliese 638, Gliese 649, Gliese 649 b, Gliese 661, GSC 02620-00648, GSC 03089-00929, HAT-P-14b, HAT-P-2b, HD 147506, HD 149026, HD 149026 b, HD 154345, HD 154345 b, HD 155358, HD 155358 b, HD 155358 c, HD 156668, HD 156668 b, HD 164922, HD 164922 b, Hercules (dwarf galaxy), Hercules X-1, HR 6806, Iota Herculis, Kappa Herculis, Lambda Herculis, List of stars in Hercules, Messier 13, Messier 92, Mu Herculis, NGC 6210, Nu Herculis, Omega Herculis, Omicron Herculis, PGC 214560, Phi Herculis, Pi Herculis, QSR J1819+3845, Sigma Herculis, Tau Herculids, Tau Herculis, Theta Herculis, TrES-3b, TrES-4b, Upsilon Herculis, V446 Herculis, V533 Herculis, V838 Herculis, WISEPA J171104.60+350036.8, WISEPA J180435.40+311706.1, WISE 1614+1739, WISE 1617+1807, WISE 1627+3255, WISE 1653+4444, WISE 1738+2732, WISE 1741+2553, WISE 1812+2721, WISE J180901.07+383805.4, Xi Herculis, Zeta Herculis. Excerpt: This is the list of notable stars in the constellation Hercules, sorted by decreasing brightness. Hercules is a constellation named after Hercules, the Roman mythological hero adapted from the Greek hero Heracles. Hercules was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is the fifth largest of the modern constellations. The constellation Hercules as it can be seen by the naked eye. Hercules has no first or second magnitude stars. However, it does have several stars above magnitude 4. Alpha Herculis, traditionally called Rasalgethi, is a binary star resolvable in small amateur telescopes, 400 light-years from Earth. The primary is an irregular variable star; it is a red giant with a minimum magnitude of 4 and a maximum magnitude of 3. It has a diameter of 400 solar diameters. The secondary, which orbits every 3600 years, is a blue-green hued star of magnitude 5.4. Its common name means "the kneeler's head." Beta Herculis, also called Kornephoros, is the brightest star in Hercules. It is a yellow giant of magnitude 2.8, 148 light-years from Earth. Its traditional name means "club-bearer." Delta Herculis is a double star divisible in small amateur telescopes. The primary is a blue-white star of magnitude 3.1, 78 light-years from Earth. The optical companion is of magnitude 8.2. Gamma Herculis is also a double star divisible in small amateur telescopes. The primary is a white giant of magnitude 3.8, 195 light-years from Earth. The optical companion, widely separated, is 10th magnitude. Zeta Herculis is a binary star that is becoming divisible in medium-aperture amateur telescopes, as the components widen to their peak in 2025. The system, 35 light-years from Earth, has a period of 34.5 years. The primary is a yellow-tinged star of magnitude 2.9 and the secondary is an orange star of magnitude 5.7. There are several dimmer variable stars in Hercules. 30 Herculis, also called g He
