G 196-3 is a younglow-massM dwarf typestar which is about 100 million years old. The star is located within theUrsa Major constellation about 71.1light years away^[2] from theEarth. During observations byInstituto de Astrofísica de Canarias inTenerife,Spain in 1998, a substellar-mass object was discovered to orbit approximately 300astronomical units (AU) from the star. It was detected using direct imaging.^{[8][9][10][11]}

Observations of the substellar object were performed on January 25, 1998 where a faint red companion was present 16.2 arc seconds southwest of the star. A comparison of images taken at different wavelengths was done using low-intermediate-resolutionspectroscopy confirmed the presence of a substellar object which was namedG 196-3B. The Further observations confirmed the discovery when the team of Rafael Rebolo obtainedR & I broadband photometry on March 19, 1998. The TCS Telescope showed its very cool nature in near-infrared (K Band). The comparison of the optical and infrared magnitudes including dust condensation has allowedastronomers to conclude that the substellar object was 25–10+15 Jupiter masses or simply 25 masses that of the Jovian-planetJupiter. This was the second^[12][13] discovery of abrown dwarf that was found around a low-mass star whose age^[14] was relatively young. The separation of the star and the substellar object has suggested that both were parts of a fragment from acollapsing cloud although another possible scenario suggests that it originated from a dissipatedprotoplanetary disk.^{[15][8][16][17][18][19]}

• HAT-P-12
• HAT-P-13
• OGLE-TR-111

• Ursa Major
• M-type main-sequence stars
• L-type brown dwarfs

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