Star
Rasalgethi
α1 Herculis · HIP 84345 · Red bright giant
True colour from its B–V index (1.16) — a surface around 4,400 K.
Distance
360 light-years
Spectral type
M5IIvar
Brightness
mag 2.78
Absolute mag
-2.43
Luminosity
818 × Sun
Surface
~4,400 K
Right ascension
17h 14m 39s
Declination
+14° 23′
- Rasalgethi is a red bright giant in Hercules.
In your sky
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More stars in Hercules
- Kornephorosmag 2.78
- Rutilicusmag 2.81
- Sarinmag 3.12
- π Herculismag 3.16
- μ Herculismag 3.42
- η Herculismag 3.48
Distances and spectral types: HYG Database (Hipparcos parallaxes), CC BY-SA 4.0.