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WISE J1217+1626

WISE J121756.90+162640.8, WISEA J121756.92+162640.3

Binary brown dwarf in Coma Berenices

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Proper Name	None
Bayer Designation	None
Flamsteed Number	None
HR (BSC)	None
HD	None
Other Designations	WISE J1217+1626
Constellation	Coma Berenices
Right Ascension	12h 17m 56s
Declination	+16° 26' 54"
Distance	30 light years 9 parsecs
Magnitude	Apparent: +17.83 (J-band) Absolute: +17.99
Spectral Class	T8.5 brown dwarf (A) Y0 sub-brown dwarf (B)
Optimum Visibility	April
Planets in this system	The sub-brown dwarf component B is sometimes listed an massive exoplanet, WISE 1217+16 A b

At eighteenth magnitude, the pair of brown dwarfs designated WISE J1217+1626 is too faint to be seen even in this magnified image. The reticle here marks the location of the binary pair, but the brown dwarfs themselves are not shown here. Imagery provided by Aladin sky atlas

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Coma Berenices

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