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DENIS 1048−3956Location of DENIS J1048−3956 in the constellation Antlia
DENIS J1048−3956 is an exceptionally small, dim ultra-cool red dwarf star about 13.2 light years from Earth in the southern constellation of Antlia, among the stars closest to Earth. This star is very dim with an apparent magnitude of about 17, and will require a telescope with a camera to be seen. It was discovered in 2000 by Xavier Delfosse (Institute of Astrophysics of the Canary Islands, now Observatoire de Grenoble) and Thierry Forveille (Canada–France–Hawaii Telescope Corporation), with the assistance of nine other astronomers.
J1048 is a good example of the smallest, least massive stars possible. With a mass of just 7.5% that of the Sun’s, it is barely large enough to sustain fusion in its core. In fact, it is so small, dim and cool that it was originally thought to be a brown dwarf.
^ Lienhard, F.; Queloz, D.; Gillon, M.; Burdanov, A.; Delrez, L.; Ducrot, E.; Handley, W.; Jehin, E.; Murray, C. A.; Triaud, A H M J.; Gillen, E.; Mortier, A.; Rackham, B. V. (2020), "Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey", Monthly Notices of the Royal Astronomical Society, 497 (3): 3790–3808, arXiv:2007.07278, doi:10.1093/mnras/staa2054{{citation}}: CS1 maint: unflagged free DOI (link)
DENIS 1048−3956Location of DENIS J1048−3956 in the constellation Antlia
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