RT Journal Article T1 How to become a mini-moon: some hints from 2022 NX1 A1 Fuente Marcos, Raúl de la A1 Fuente Marcos, Carlos AB Low-velocity encounters between our planet and any near-Earth object (NEO) in an Earth-like orbit may induce its temporary capture as a mini-moon. Such mini-moon episodes could lead the NEO to complete one or more revolutions around Earth when gravitationally bound, a temporarily-captured orbiter, like in the cases of 2006 RH120 and 2020 CD3; sometimes not even one revolution is completed, a temporarily-captured flyby, like in the case of 1991 VG. Asteroid 2022 NX1 experienced a temporarilycaptured flyby in 1981, has had another one in 2022, and will become a temporarily-captured orbiter in 2051. This object occupies the edge of Earth’s co-orbital space and sometimes it approaches us following a horseshoe path. PB American Astronomical Society SN 2515-5172 YR 2022 FD 2022-08 LK https://hdl.handle.net/20.500.14352/71956 UL https://hdl.handle.net/20.500.14352/71956 LA eng NO Aarseth, S. J. 2003, Gravitational N-Body Simulations(Cambridge: Cambridge University Press), 27Benner, L. A. M. & McKinnon, W. B. 1995, Icarus, 118, 155Bolin, B. T., Fremling, C., Holt, T. R., et al. 2020, ApJL, 900, L45de la Fuente Marcos, C. & de la Fuente Marcos, R. 2012, MNRAS, 427, 728de la Fuente Marcos, C. & de la Fuente Marcos, R. 2013, MNRAS, 434, L1de la Fuente Marcos, C. & de la Fuente Marcos, R. 2015, Astronomische Nachrichten, 336, 5de la Fuente Marcos, C. & de la Fuente Marcos, R. 2018, MNRAS, 473, 2939de la Fuente Marcos, C. & de la Fuente Marcos, R. 2020, MNRAS, 494, 1089Fedorets, G., Granvik, M., & Jedicke, R. 2017, Icarus, 285, 83Fedorets, G., Micheli, M., Jedicke, R., et al. 2020, AJ, 160, 277Ginsburg, A., Sip˝ocz, B. M., Brasseur, C. E., et al. 2019, AJ, 157, 98Giorgini, J. D. 2015, IAUGA, 22, 2256293Kwiatkowski, T., Kryszczy´nska, A., Poli´nska, M., et al. 2009, A&A, 495, 967Makino, J. 1991, ApJ, 369, 200Murray, C. D. & Dermott, S. F. 1999, Solar system dynamics (Cambridge, UK: Cambridge University Press)Naidu, S. P., Micheli, M., Farnocchia, D., et al. 2021, ApJL, 913, L6Ohtsuka, K., Ito, T., Yoshikawa, M., et al. 2008, A&A, 489, 1355Park, R. S., Folkner, W. M., Williams, J. G., et al. 2021, AJ, 161, 105Rabinowitz, D. L., Gehrels, T., Scotti, J. V., et al. 1993, Nature, 363, 704Tancredi, G. 1997, Celestial Mechanics and Dynamical Astronomy, 69, 119 DS Docta Complutense RD 1 may 2024