Answer:
0.5 arcseconds
Explanation:
Luhman 16 located in the southern constellation Vela is a binary brown-dwarf system. Mass of Luhman 16 A is 33.5 and that of Luhman 16 B is 28.6 Jupiter masses.
Distance of Luhman 16 from Earth = D = 2.0 parsec
Stellar Parallax angle
[tex]p=\frac{1}{D}\\\Rightarrow p=\frac{1}{2}\\\Rightarrow p=0.5\ arcsec[/tex]
∴ Parallax of Luhman 16 is 0.5 arcseconds