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hip-89861
Cool red starIts story
106 Herculis belongs to the rarer kind among naked-eye stars: the cool red giants of class M, exhausted suns that have swollen and cooled after burning through their central hydrogen. Its reddish tint is subtle but unmistakable to a trained eye, set in the northern reaches of Hercules, away from the hero’s main body. Its light spans almost four centuries before reaching us.
- Constellation
- Hercules
- Apparent magnitude
- 4.92
- Distance
- 392.1 light years
- Coordinates (J2000)
- RA 275.075° · Dec 21.961°
- Catalogue
- HIP 89861 · HD 168720
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