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| Abbreviation: Her |
| English Name: The Hercules |
| Genitive: Rassalgethi |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Lyra and Corona Borealis. |
| Visible between latitudes: +90 and -50 degrees |
| Best season: Summer |
| Seen in three seasons: Spring, Summer, and Autumn |
| Best seen in: Early July (map) |
| Seen between: April and December |
| Right Ascension (RA): 17 hour |
| Declination (DEC): +30 degrees |
| Area (square degrees): 1,225 square degrees (5th) |
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Hercules (The Hercules)
- A common form found in modern star charts uses the four-sided surrounded formed known as the “Keystone” asterism.
o - Hercules contains two bright globular clusters: M13 – brightest globular cluster in the northern hemisphere, and M92.
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Messier Objects in Hercules
| M13 – visible to both the naked eye and binoculars under very good condition, is a globular cluster of the 6th magnitude that contains more than 300,000 stars; sometimes called the Great Globular Cluster or the Hercules Cluster. (photo) |
| M92 – one of the brighter globular clusters in the northern hemisphere, but it is often overlooked by amateur astronomers because of its being close together to the even more outstanding dramatic M13. |
More objects in Hercules
| Select Catalog | No of Objects |
| Barnard (B) | 0x object |
| Caldwell (C) | 0x object |
| Collinder (Cr) | 0x object |
| New General Catalogue (NGC) | 214x objects |
| Index Catalogue (IC) | 96x objects |
| Sharpless (Sh2) | 1x object |
Features of Interest
- The star Rasalgethi is a strangely colourful, multiple star; there is a giant red star with a bright green companion, and this star has its own tiny orange companion as resembling from stars as a `traffic light`
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Named Stars
- Rasalgethi (Alpha 1 Her)
- Kornephoros (Beta Her)
- Sarin (Delta Her)
- Marfik (Kappa Her)
- Maasym (Lambda Her)
- Kajam (Omega Her)
- more list of stars in Hercules.
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Planetarium / Constellation Map
| Live constellation visible from the UK :- Planetarium (Hercules) | Best Seen in: Early July (map) | Seen between: April and December |
IAU Sky Chart: Hercules
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Constellations – Visible from the UK
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Parts visible from the UK
| Antlia | Columba | Eridanus | Fornax | Microscopium | ||
| Piscis Austrinus | Puppis | Pyxis | Sagittarius | Scorpius | ||
| Sculptor |
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Constellations: Southern Celestial Hemisphere
…..– never seen from the UK
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Back to …Constellation Names
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