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HD 209458 b
Osiris was the first exoplanet seen in transit and the first with a detected escaping atmosphere.
Host: HD 209458
- ID
- HD 209458 b
- Distance
- 49.63 pc · 161.9 ly
- Parallax
- 20.15 mas
- Magnitude (G)
- 7.65
- Color (BP-RP)
- 0.59
- Radius
- 1.20 R☉
- RA · Dec
- 330.80° · 18.88°