Hercules constellation: how to find it, when to see it and what is in it
In short
Hercules (Her) is a northern constellation covering 1,225 square degrees, number 5 of 88 by size. Its brightest star is Kornephoros, a yellow giant, magnitude 2.8. It is best seen in the evening in July. Over London it rises and sets and is well placed in its season. Its neighbours in the sky: Aquila, Boötes, Corona Borealis, Draco, Lyra, Ophiuchus, Serpens, Sagitta, Vulpecula.
Area: 1,225 square degrees, 5 of 88 · Neighbours: Aquila, Boötes, Corona Borealis, Draco, Lyra, Ophiuchus, Serpens, Sagitta, Vulpecula · Updated 10 October 2026
How to find Hercules
- 1
When to look
The best time is in July in the evening: in the south, around 23:00.
- 2
Use the neighbours
Find it from the neighbouring constellations: Aquila, Boötes, Corona Borealis, Draco.
- 3
Brightest stars
The brightest stars of the figure: Kornephoros (2.8ᵐ), Tianji (2.8ᵐ), Sarin (3.1ᵐ).
When it is visible over London
| Month | Where and when | Conditions |
|---|---|---|
| January | in the east, around 06:26 | before dawn |
| February — march | in the southeast, around 05:44 | before dawn |
| April — may | in the south, around 04:31 | before dawn |
| June | in the south, around 00:36 | around midnight |
| July | in the south, around 23:00 | in the evening |
| August — september | in the southwest, around 21:48 | in the evening |
| October — november | in the west, around 19:19 | in the evening |
| December | in the east, around 06:29 | before dawn |
Stars of the constellation
| Star | What it is | Magnitude |
|---|---|---|
| Kornephoros · β Her | yellow giant | 2.8ᵐ |
| Tianji · ζ Her | yellow subgiant | 2.8ᵐ |
| Sarin · δ Her | white subgiant | 3.1ᵐ |
| Nüchuang · π Her | orange bright giant | 3.2ᵐ |
| μ Her | yellow subgiant | 3.4ᵐ |
| Rasalgethi · α¹ Her | red supergiant | 3.5ᵐ |
| η Her | yellow giant | 3.5ᵐ |
| ξ Her | yellow giant | 3.7ᵐ |
Hercules FAQ
When is the best time to see Hercules?
Where is Hercules in the sky?
What is the brightest star in Hercules?
Neighbouring and other constellations
Related
Constellation lines: Stellarium, CC BY-SA · star names: IAU WGSN, CC BY 4.0