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WISEPA J184124.74+700038.0
WISEPA J184124.74+700038.0 (designation is abbreviated to WISE 1841+7000) is a binary system of brown dwarfs of spectral classes T5 + T5, located in constellation Draco at approximately 131 light-years from Earth. It is notable for being one of the first known binary brown dwarf systems.
==Discovery==
WISE 1841+7000 was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. WISE 1841+7000A has two discovery papers: ''Gelino et al. (2011)'' and ''Kirkpatrick et al. (2011)''. ''Gelino et al.'' examined for binarity nine brown dwarfs using Laser Guide Star Adaptive Optics system (LGS-AO) on Keck II telescope on Mauna Kea; seven of these nine brown dwarfs were also newfound, including WISE 1841+7000. These observations had indicated that two of these nine brown dwarfs, including WISE 1841+7000, are binary. ''Kirkpatrick et al.'' presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 1841+7000.〔These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.〕
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