separation
(arcsec) separation
(au) most recent
position angle period
(years) semi-major axis
(arcseconds) notes
separation -lrb- arcsec -rrb-
separation -lrb- au -rrb-
most recent position angle
period -lrb- years -rrb-
semi major axis -lrb- arcseconds -rrb-
notes
number
number
number
number
number
text number number number number number text
ab-cd 208.2 10500 172 1804.41 4.742 ε1-ε2
how many orbit pairs total are listed ?
WRB JJ NN NNS JJ VBD-AUX VBN .
9
select count ( c1 ) from w