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 pair have no notes ?
WRB JJ NN NN VBD-AUX DT NNS .
5
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Keyword
select count ( c1 ) from w where c7 is null
Keyword Keyword Column Column Keyword Keyword Column None
['agg', 'agg_count'] ['agg', 'agg_count'] c1 c1 ['null', 'null_null'] ['null', 'null_null'] c7