**HD 219134 d**
**Definition:**
HD 219134 d is an exoplanet orbiting the star HD 219134, located approximately 21 light-years from Earth in the constellation Cassiopeia. Czytaj dalej
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**HD 219134 d**
**Definition:**
HD 219134 d is an exoplanet orbiting the star HD 219134, located approximately 21 light-years from Earth in the constellation Cassiopeia. Czytaj dalej