Hercules (constellation)
constellation in the northern celestial hemisphere
Hercules is a constellation in the northern part of the sky. It represents the mythological Hercules of Greek mythology. It was one of the 48 constellations listed by an astronomer known as Ptolemy around the year 150 CE. It is now one of the 88 modern constellations on the International Astronomical Union's list.[1]
| Constellation | |
 | |
| Abbreviation | Her genitive = Herculis |
|---|---|
| Pronunciation | /ˈhɜːrkjʊliːz/, genitive /ˈhɜːrkjʊlɪs/ |
| Symbolism | Heracles |
| Right ascension | 17h |
| Declination | +30° |
| Quadrant | NQ3 |
| Area | 1225 sq. deg. (5th) |
| Main stars | 14, 22 |
| Bayer/Flamsteed stars | 106 |
| Stars with planets | 15 |
| Stars brighter than 3.00m | 2 |
| Stars within 10.00 pc (32.62 ly) | 9 |
| Brightest star | β Her (Kornephoros) (2.78m) |
| Messier objects | 2 |
| Meteor showers | Tau Herculids |
| Bordering constellations | Draco Boötes Corona Borealis Serpens Caput Ophiuchus Aquila Sagitta Vulpecula Lyra |
| Visible at latitudes between +90° and −50°. Best visible at 21:00 (9 p.m.) during the month of July. | |
References
change- ↑ "Constellation". COSMOS - The SAO Encyclopedia of Astronomy. Retrieved 6 July 2019.
