Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: IAU working definition of exoplanets 21st March 2022, 2:57 pm | |
| https://arxiv.org/abs/2203.09520I believe that under this definition and given the astrometric masses, Upsilon Andromedae is the first known system to contain both S- and P-type planets, containing the circumstellar planet Ups And b, and the circumbinary planet Ups And d. While it is probably among the tightest binaries to host an S-type planet, it does follow the Kepler pattern of circumbinary planets being located close to or in the habitable zone. | |
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