Pherkad vs HR 8799
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Pherkad
Pherkad, or Gamma Ursae Minoris, is a naked-eye star in the northern constellation Ursa Minor. It is a white A-type giant and, with Kochab, forms the pair at the outer end of the Little Dipper's bowl, an easily recognized part of the constellation. Pherkad has an apparent visual magnitude of about 3 and lies roughly 487 light-years from the Sun, so it is visible without optical aid but is not the...
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HR 8799
HR 8799 is a young A-type main-sequence star located approximately 129 light-years away in the constellation of Pegasus. In 2008, it achieved major astronomical significance when it became the first star system with multiple exoplanets to be directly imaged. High-resolution observations revealed four massive gas giant planets orbiting the star, which also possesses an extensive debris disk. The sy...
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