We present the results of astrometic observations of H _ { 2 } O masers associated with the star forming region G192.16 - 3.84 with the VLBI Exploration of Radio Astrometry ( VERA ) .
The H _ { 2 } O masers seem to be associated with two young stellar objects ( YSOs ) separated by \sim 1200 AU as reported in previous observations .
In the present observations , we successfully detected an annual parallax of \pi = 0.66 \pm 0.04 mas for the H _ { 2 } O masers , which corresponds to a distance to G192.16 - 3.84 of D = 1.52 \pm 0.08 kpc from the Sun .
The determined distance is shorter than the estimated kinematic distance .
Using the annual parallax distance and the estimated parameters of the millimeter continuum emission , we estimate the mass of the disk plus circumstellar cloud in the southern young stellar object to be 10.0 ^ { +4.3 } _ { -3.6 } M _ { \odot } .
We also estimate the galactocentric distance and the peculiar motion of G192.16 - 3.84 , relative to a circular Galactic rotation : R _ { \ast } = 9.99 \pm 0.08 kpc , Z _ { \ast } = -0.10 \pm 0.01 kpc , and ( U _ { \ast } ,V _ { \ast } ,W _ { \ast } ) = ( -2.8 \pm 1.0 , -10.5 \pm 0.3 , 4.9 \pm 2.7 ) [ km s ^ { -1 } ] respectively .
The peculiar motion of G192.16 - 3.84 is within that typically found in recent VLBI astrometric results .
The angular distribution and three-dimensional velocity field of H _ { 2 } O maser features associated with the northern YSO indicate the existence of a bipolar outflow with a major axis along the northeast–southwest direction .