YZ Cet HIP 5643 01 12 30.6367 -16 59 56.3613 3.60 YZ Cet HIP 5643 Gaia DR2 2358524597030794112 TYC 5851-171-1 GJ 54.1 0.17 12.074 8.910 7.258 6.749 6.420 0.13 3056.00 -0.260 M4.5 YZ Cet b HIP 5643 b Gaia DR2 2358524597030794112 b TYC 5851-171-1 b GJ 54.1 b 0.015570 0.000000 1.96876000 This planet was discovered by Astudillo-Defru et al. 2017. This was a ground based discovery. The parameters listed here are those reported by Astudillo-Defru et al. 2017 and were imported into the Open Exoplanet Catalogue from the NASA Exoplanet Archive. 0.00236 RV 2017 Confirmed planets 17/08/24 YZ Cet c HIP 5643 c 0.020900 0.040000 3.06008000 This planet was discovered by Astudillo-Defru et al. 2017. This was a ground based discovery. The parameters listed here are those reported by Astudillo-Defru et al. 2017 and were imported into the Open Exoplanet Catalogue from the NASA Exoplanet Archive. 0.00308 RV 2017 Confirmed planets 17/08/24 YZ Cet d HIP 5643 d 0.027640 0.129000 4.65627000 This planet was discovered by Astudillo-Defru et al. 2017. This was a ground based discovery. The parameters listed here are those reported by Astudillo-Defru et al. 2017 and were imported into the Open Exoplanet Catalogue from the NASA Exoplanet Archive. 0.00359 RV 2017 Confirmed planets 17/08/24 Cetus