A Jovian planet in an eccentric 11.5 day orbit around HD1397 discovered by TESS von Nielsen, L D, Bouchy, F, Turner, O, Giles, H, A Suarez Mascareno, Lovis, C, Marmier, M, Pepe, F, Segransan, D, Udry, S, Otegi, J F, Ottoni, G, Stalport, M, Ricker, G, Vanderspek, R, Latham, D, Seager, S, Winn, J N, Jenkins, J M, R Wittenmyer, Kane, S R, Cartwright, S M, Collins, K A, Francis, J, Guerrero, N, Huang, C X, Matthews, E C, Pepper, J, Rose, M, Villasenor, J, Wohler, B, Stassun, K, Crossfield, I, Howell, S, Ciardi, D, Gonzales, E, Matson, R, Beighman, C, Schlieder, J

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