description HD 12661 b Overview
HD 12661 b is a gas-giant exoplanet orbiting the star HD 12661, a K-type star in the constellation Aries. It is the inner known planet in a two-planet system and completes an orbit in roughly 263 days. The planet was identified through radial-velocity measurements, which track changes in the star's line-of-sight motion. Its orbit and the presence of a more distant companion made the system an early example of a multi-planet system found around a star other than the Sun.
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How good is HD 12661 b?
HD 12661 b scores 5.70/10 (Mediocre) on Lunoo, making it rated in the Exoplanet category.
What are the best alternatives to HD 12661 b?
See our alternatives page for HD 12661 b for a ranked list with scores. Top alternatives include: HD 160691 b, HD 37124 b, HD 142 b.
How does HD 12661 b compare to HD 160691 b?
See our detailed comparison of HD 12661 b vs HD 160691 b with scores, features, and an AI-powered verdict.
Is HD 12661 b worth it in 2026?
With a score of 5.70/10, HD 12661 b is a solid option in Exoplanet. See all Exoplanet ranked.
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