A micronova is a type of explosion on the surface of a star with about one millionth the strength of a (classical) nova. It was first observed in April 2022 and is caused by accumulation of material onto the star from its environment.[1][2][3][4]
↑S. Scaringi; P.J. Groot; C.Knigge; J.-P. Lasota; D. de Martino; Y. Cavecchi; D.A.H. Buckley; M.E. Camisassa (2022-04-19). "Triggering micronovae through magnetically confined accretion flows in accreting white dwarfs". Monthly Notices of the Royal Astronomical Society: Letters. 514: L11–L15. arXiv:2204.09073. doi:10.1093/mnrasl/slac042.{{cite journal}}: CS1 maint: unflagged free DOI (link)