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GJ 3470 c: A Saturn-like Exoplanet Candidate in the Habitable Zone of GJ 3470

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arxiv 2007.07373 v1 pith:PKG6L7TP submitted 2020-07-14 astro-ph.EP

GJ 3470 c: A Saturn-like Exoplanet Candidate in the Habitable Zone of GJ 3470

classification astro-ph.EP
keywords exoplanetcandidatediscoveryestimatefirsthabitableorbitalsaturn-like
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report the discovery of a new exoplanet candidate orbiting the star GJ 3470. A total of three transits were detected by OKSky Observatory: the first one on December 23, 2019, the second one on February 27, 2020, and the third one on May 3, 2020. We estimate an average transit depth of 0.84 percent and duration of 1 hour and 2 minutes. Based on this parameter, we calculate a radius of 9.2 Earth radii, which would correspond to the size of a Saturn-like exoplanet. We also estimate an orbital period of 66 days that places the exoplanet inside the habitable zone, near the orbital distance at Earths equivalent radiation. Another twelve potential transits that do not belong to GJ 3470 b are also reported. Despite our candidate for GJ 3470 c still has to be confirmed by the scientific community, the discovery represents a turning point in exoplanet research for being the first candidate discovered through an international project managed by amateur astronomers.

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