northern skyBest Jul
Hercules
The Herogen. Herculis
- Brightest
- Rasalgethi
- Stars
- 150
- Best viewed
- July
- Sky center
- 258.0°, +27.0°
Alpha Herculis
in catalog
from mid-latitudes
RA / Dec
Live 3D view
150 stars
pinch · drag
α · Brightest
Rasalgethi
Mythology
Heracles, greatest hero of Greek myth, performer of the Twelve Labors. Contains M13 — one of the finest globular clusters visible from the northern hemisphere, a 300,000-star ball at 25,000 light-years.
Brightest stars
top 8 of 150| Star | Bayer | Magnitude | B−V |
|---|---|---|---|
Kornephoros | 27Bet Her | 2.78 | 0.95 |
Rasalgethi | 64Alp1Her | 2.78 | 1.16 |
40Zet Her | — | 2.81 | 0.65 |
Sarin | 65Del Her | 3.12 | 0.08 |
67Pi Her | — | 3.16 | 1.44 |
86Mu Her | — | 3.42 | 0.75 |
44Eta Her | — | 3.48 | 0.92 |
92Xi Her | — | 3.70 | 0.94 |
- Kornephoros27Bet Her2.78mag
- Rasalgethi64Alp1Her2.78mag
- 40Zet Her2.81mag
- Sarin65Del Her3.12mag
- 67Pi Her3.16mag
- 86Mu Her3.42mag
- 44Eta Her3.48mag
- 92Xi Her3.70mag
Lower magnitude = brighter. B−V color index maps to star color (bluer cooler, redder warmer).