Barnard's Star is among the most studied red dwarfs because of its proximity and favorable location for observation near the celestial equator.[8] Historically, research on Barnard's Star has focused on measuring its stellar characteristics, its astrometry, and also refining the limits of possible extrasolar planets. Although Barnard's Star is ancient, it still experiences stellar flare events, one being observed in 1998.[18]
Barnard's Star hosts at least one planet, a close-orbiting sub-Earth discovered in 2024, with additional candidates suspected. Previously, it was subject to multiple claims of planets that were disproven.[6]
^ abcdeCite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
^ abcCutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (June 2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. 2246. Bibcode:2003yCat.2246....0C.
^Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (2009) [First published 2009]. "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007–2017)". VizieR On-line Data Catalog: B/gcvs. 1: B/gcvs. Bibcode:2009yCat....102025S.
^ abcdefCite error: The named reference GonzálezHernández2024 was invoked but never defined (see the help page).
^ abCite error: The named reference Pineda2021 was invoked but never defined (see the help page).
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^Seeliger, Hugo; Bauschinger, Julius (1890). "Erstes Müchner Sternverzeichniss enthaltend die mittleren Örter von 33082 Sternen". Neue Annalen der Koeniglichen Sternwarte in Bogenhausen bei Muenchen. 1: 1. Bibcode:1890AnBog...1....1S.
^Cite error: The named reference rukl1999 was invoked but never defined (see the help page).