SN 2003H was a supernova that appeared halfway between the colliding NGC 2207 and IC 2163 galaxies. It was discovered on January 8, 2003, by the Lick Observatory and Tenagra Supernova Searches (LOTOSS).
References
12Li, Weidong; etal. (April 2011), "Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample", Monthly Notices of the Royal Astronomical Society, 412 (3): 1441–1472, arXiv:1006.4612, Bibcode:2011MNRAS.412.1441L, doi:10.1111/j.1365-2966.2011.18160.x, S2CID59467555
1234Graham, J.; Li, W.; Puckett, T.; Toth, D.; Qiu, Y. L. (January 2003), Green, D. W. E. (ed.), "Supernovae 2003E, 2003F, 2003G, 2003H", IAU Circular, 8045 (8045): 1, Bibcode:2003IAUC.8045....1G.